Also a NYXBoard happy (until recently) user.
Regarding the broken tilt sensor (the cause of the above caveat) - it is a simple ball in pipe physical sensor, and not a gyro - something like this:
http://www.adafruit.com/product/173. There actually 2 in there, possibly to make sure that the keyboard is turned on only when both sensors approve of the position, which might be a problem if one gets stuck in the closed position. I'm going to remove them and replace with a simple mercury switch (like this:
http://www.ebay.com/itm/-/171600334128) and I will let you know how it works.
In the mean time I'm also looking for a replacement, with these requirements:
1. Must have QWERTY keyboard.
2. Must have IR remote with learning feature.
3. Must have media buttons (RW, FF, play, stop) that work in RF mode (if they work in IR mode as well, its nice but not required - I need it to control a TV).
4. Must have multi use buttons that work for both IR and RF - at the minimum volume, d-pad, OK and cancel.
5. Must work on standard AA or AAA batteries - I tried a Rii with a rechargeable batteries and they run out way too fast.
6. If it has an air mouse, there must be a way to disable it completely - said Rii has this feature and it makes it impossible to hold the remote while watching TV as the mouse cursor keeps moving on the screen.
I've looked at the F10 and Rii i25 but both seem to have dedicated IR buttons (I'm still waiting for an Amazon custom response regarding the F10).
I'm now looking at this device:
http://www.newegg.com/Product/Product.as...000F-00014
While not dual sided and not nearly as compact as the NYXBoard or other contenders, it does seem to offer all the bells and whistles, and I think I will be much happier with its track ball based mouse control than with an air mouse or the NYXBoard's barely usable d-pad mouse emulator. It is also available much cheaper from Amazon under several different brand names - look for Imonic, Andoer, Oboss, Chicho, Newskey, Acosun, Kingzer or Feilan (I'm pretty sure they use a random character generator for these names). There's a non-backlight version which also comes with a large sized USB dongle instead of a micro dongle, but it's cheaper.
Other remotes that were mentioned
* KR26 (the round thing): non-replaceable chargeable battery, no IR. It purports to solve the shaky air mouse problem, but I'm not going to try.
* Aerb (
http://www.amazon.com/-/dp/B00K768DHY): Apparently only the four colored buttons at the bottom are programmable for IR, the rest are RF only. It could work in a pinch, as I mostly use just the power and AV source features of the TV, but as I understand while there is a button to deactivate the air mouse feature, it turns on automatically if you press any RF button on the remote side.