The wonderful thing about Android is that many, many devices use it! Honeycomb as of yet is only available on Tablets, such as the Kindle Fire. The latest Android OS, "Ice Cream Sandwich", will unite the operating systems found on the Android phones and the Android Tablets, much like Apple's approach with their latest OS, "Lion".
What I am saying is, porting will not be difficult. As long as developers, such as myself, refrain from using absolute *screen dependent* layouts, there will be little to no UI changes.