I have a GoPro, it takes excellent HD video. Used it to do some road cycling stuff. No idea about the WiFi aspect.
Tried taking one handed photos with a normal camera but decided not a good idea for me after a few wobbles/scares. Bought a Sony AS series camera, with a WiFi wrist control that seems to work extremely well. Attached the mount to the Indicator stalk on the RH side with good results so far and no scary moments taking pictures.
I have a Hero 3 Black Edition that came with the remote, but wifi is built in on the current models (not an add-on board). Works wonderfully; really nice to stop and start recording remotely. If you use the iPhone GoPro app you can line up your shot in realtime (live streaming to phone).
I have the gopro 3 silver with remote, really pleased with it, also downloaded the app onto my iPhone..........
I really want a go pro. The wireless sounds great.
Don't want to hijack this thread, as there's a question being asked, so I'll start a fresh one.
I have the Hero2 with the WIFI backpack, and I use it a lot for all my power sport adventures. You can concentrate more on driving with the remote than you can without it. Strap it to you handle bars so you can easily monitor, and turn it on and off. It took me a while to set it up, and what I found out is to make sure you install all the updates to make the WIFI work correctly, especially on the Hero2. The Hero3 is much nicer than the Hero2. Oh, and that suction cup is the best accessory for that camera. It stays on no mater how fast, cold, or bumpy it is.