Google said recently that Android 3.0 was designed specifically for tablet form factors only. For those running smartphones, the current versions fall in to the 2.x range, specifically 2.3 if you have new enough hardware.
Ice Cream Sandwich is the next Smartphone version which is expected to launch in the next 4 to 5 months. This new version is expected to fall in the 2.X version.
Something interesting has been found in the Android 3.0 SDK though which hints at 3.0 also being compatible with smartphones. The emulator used in the SDK can actually be set to a lower resolution to match a smartphone screen sized resolution.
With that in mind, it appears that Google might in the future, look at the option of keeping the same Android version on both tablets and smartphones in a way similar to how iOS 4.2 works on the iPad and iPhone.
This information is of course just speculation right now as Google might stick to the two separate versions. Either way, it wont cause too much problems, if any at all, as Google will likely use similar features between both versions.
Via: Geeky Gadgets
Let hope that Android Honeycomb could also be used for smart phones too.