Too wait, or not too wait, that is the question
The next generation should be out in 4 or 5 months. First generation Android based tablets will be out by then as well.
For myself, I could not wait until the 3G iPad's came out (anybody remember the thread where we waited, and consoled each other? Great fun!). I still remember greeting my Fedex driver at 10:00 am on April 30th. ah memories!