The industrious folks over at XDA have done it again. User Fenny has modified the APK files necessary to run the Motorola Atrix 4G’s Webtop functionality to enable the feature over any HDMI connection. Goodbye pricey docks. You will need to have your Atrix 4G rooted and deodoxed for this to work, but if that’s the case you need only update the DockProvider, DockService, and PortalApp APKs to enable Webtop as an option whenever the Atrix is connected to a screen via HDMI.
Sure, it isn’t quite the convenience of a compact laptop dock featuring keyboard and screen built in, but if you have a bluetooth keyboard and an HDMI-capable display you can enjoy the enhanced capabilities of Webtop without spending an additional penny. More instructions at the source link below.