If you've ever heard of C-motech, it was probably in relation to their 3g and 4G wireless modems. They make very good hardware which is rebranded under a bunch of different names.
The Mangrove is their first UMD. It has a Snapdragon CPU, 7" LCD, and runs Windows Mobile 6.5. I know that last bit might sound odd, given that everyone else is going for Android, Linux, (or the desktop version of Windows,) but I can see the logic in their decision.WinMo might be older, and I'm sure someone will call it outdated, but it's also more stable than Android and has vastly more apps available.