Google announced this week that they have forked Android, with one version for smartphones and the other for tablets.
Android 2.3 Gingerbread is geared for smartphones, and the upcoming Android 3.0 Honeycomb is made for tablets.
"Android 3.0 (Honeycomb) is a new version of the Android platform that is designed from the ground up for devices with larger screen sizes, particularly tablets," Android SDK tech lead Xavier Ducrochet said. "It introduces a new 'holographic' UI theme and an interaction model that builds on the things people love about Android--multitasking, notifications, widgets, and others--and adds many new features as well."
Google has released a preview of the Android 3.0 SDK for developers who want to see what their applications will look like on the larger tablet form factor.