Here's the latest on the frogpad. I exchanged my bluetooth frogpad for a USB one, and the reason is: the USB one had a non-sticky symbol key: so, the latest product(the bluetooth version) is worse than the earlier one(the USB), at least from my perspective. The USB one works a look better in terms of typing in symbols, at I expected. I am still using only on and off though, so I really need a lot more practice before I can use it for normal work. I do use it at work some times, and it's quite easy to switch back and forth, and/or have a different key input for different windows.