There is a limited edition one that just got released last month (http://www.gizmodo.com.au/2008/02/limited_editi...) though its merely cosmetic in change (no new technology features).

Considering this is a first generation product I certainly wouldn't rush out and buy one -- let someone else work the bugs out. There is no doubt that they are getting rave reviews, but look closely at those reviews and you will see people are finding faults. They have a good product, and they are well positioned to be the market leader, but just like you wouldn't want a first generation car, it also pays to wait for first generation tech. No doubt we'll be seeing a new release within a year as they iron out the bugs and continue to innovate.

Then again, that is just my two cents :-)