Mobile Grid Client is available for almost all Android devices (phones, tablets and other devices) and the BlackBerry PlayBook (with at least OS v2.0). It can be be downloaded via the official Google Android Market, SlideMe.org, the Amazon Appstore and the BlackBerry App World.
(Mobile Grid Client is not compatible with iPhone, Blackberry phones, Windows Mobile, Windows Phone 7, Symbian, Maemo or other mobile operating systems.)
Google Android Market
Link to the SlideMe entry
SlideMe is available for all Android devices. Just go to slideme.org and download Mobile Grid Client via the web-browser or install the SlideMe Application Manager (SAM) on your device and download and install Mobile Grid Client via SAM.