Kevin

The 'iamips' app is the new official app, which does not seem compatible with the XIMA based devices. My guess is that all new units from now on will be using a new model of mainboard/firmware that only works with the 'iamips' app. This is similar to how when the "plus" versions of all the old models came out, they were compatible with the XIMA apps - I'm betting they just stuck the XIMA mainboard into the old models, and they probably did the same thing again now that they made a new mainboard for the IPS Zero.

Does it work with the XIMA app? There are versions that allow you to immediately unlock.

Level calibration is NOT available. I have not personally felt any need to do this, but YMMV. It seems to me IPS has official (?) outlets on Amazon, Alibaba and eBay, however I got mine off a local re-seller on eBay to avoid the long shipping time from China.

Unfortunately not. You can think of it this way - The firmware is programmed with a certain set of switches, knobs and dials for adjusting things, and all the app can do is flip those switches and turn the knobs. In addition, all of the knobs and switches are invisible and scattered around a room, and you aren't sure if one of the buttons is "self destruct". So all of the functionality I've been able to implement has been done by metaphorically sneaking around behind an IPS guy (the Android app) and watching where he pokes at things on the wall to figure out where the controls are So while it's possible that there is a 'knob' for ride setting somewhere, unfortunately I do not know where it is unless the IPS guy someday decides to go and give it a twist Or unless IPS decides to publish a treasure map. **EDIT: As for ride stiffness, I actually find it quite a bit stiffer than the King Song, for reference sake - I believe @Jeffrey Scott Will and @Chrispy share this opinion.

I can't say for sure about the firmware updates (actually I am on 4.2 with my own wheel - been holding off on doing the upgrade because I want to do a packet capture of the process ), but I think it's unlikely they will change anything that will make it incompatible. For Android, I don't have any immediate plans because iPhone is what I am personally using. However inspired by @Tilmann I have been thinking of making an app for Pebble or some similar watch, though I haven't done any serious investigation in that area.

As described here: iTunes store link: https://itunes.apple.com/us/app/xima-lhotz/id1044832586?mt=8 or search for "XIMA Lhotz" from your iPhone. I have been able to create a replacement app for the IPS Xima Lhotz. The primary benefits are: 1) More responsive speedometer - updates much quicker 2) Bugfixes to odometer, and one extra decimal place of precision 3) Much improved connection handling - automatically and quickly reconnects to the last wheel connected when starting the app or if connection is interrupted. Also, all information refreshes IMMEDIATELY on connecting instead of 5 seconds afterward. 4) Immediate unlock of 30kph speed limit 5) Misc other improved UI Known limitations: 1) Does not handle firmware updates or renaming the wheel. Use the official IPS app for this. For any feedback, bugs or feature requests, please leave them here in this thread!

Disappointing, but I can't say I'm surprised. New product launches are a crapshoot anyday.

It's not too much of a surprise that the Invensense MPU-6050 is used - it is much better than any competition with good specs, low power usage and small form factor, and at reasonable price. At our company we use a similar sensor from Invensense Actually, neither one is right Gyros measure angular velocity, i.e. how fast it is currently rotating in degrees per second. You can calculate 'absolute position' by integrating over time (requires knowing initial position, and will slowly accumulate error over time at a rate of about 1 degree every 5 seconds unless you can correct with other information), and you can calculate 'angular acceleration' by differentiating (this is more difficult to do correctly for various reasons - I can try to dig up some links if interested). EDIT: Just watched the link from @Tilmann - the video demonstrates one way of compensating for the drift when trying to compute absolute position from gyro data - in simple terms, the accelerometer gives a rough idea of the absolute position, and the gyroscope gives very precise measurements of how that position changes over shorter periods of time.

I can't help but ask... John, is your last name really EUCist? Because if so, I'd have to call you biased Naming wise: 'EUC' works for stuff like legal definitions, but I can't see it becoming common in popular culture.If there were a brand that became hugely dominant and gained significant awareness in the general public, I would use that (sort of like 'kleenex').Otherwise, any more general name needs to have either 'wheel', 'unicycle' or 'segway' in it otherwise it will have nothing to do with the product. I prefer 'wheel' because 'unicycle' sounds dorky.Some possible 'wheel' names, branded or not: MonoWheel, SoloWheel, AirWheel, GlideWheel, eWheelPersonally I think AirWheel is the best combination of descriptive and non-dorky, but I don't want to support the brand - so as runner up I'd prefer eWheel or glidewheel. A quick google search shows that 'eWheel' is already being used for electric unicycles (there's actually another community ewheels.org), whereas 'glidewheel' turns up some electronic components, so in my opinion eWheel is the clear winner.