It's not like we are LOSING flash, we are just not going to get new udpated versions of Flash apart from critical bug fixes, and that statement alone can mean many different things. Suppose they find a security issue that can only be fixed by updating to a later version, so it is possible to still get newer versions, but I wouldn't hold onto that.
However, we will still be able to run flash, still be able to utilize flash websites and so forth. The only time this will be a problem is 10 years from now, when flash applications can no longer run on our version of flash... Once all the functionality has become totally depricated, at which time weill likely not even be using our xooms, or there will be a much better technology available, such as html5.
IIn short, this has no impact on our xooms, so don't even sweat it.