Let the hive mind of Engadget get that for you.
"I'm looking for a wireless trackpad to use with my older (2.5 or so years old) C2D MacBook that's perpetually docked to my home theater. Something sleek, thin, not too small, made of high quality materials. Ideally, it would natively support all of (Snow) Leopard's multitouch inputs, and even more ideally, it would have a charging dock / base. The only problem is that I'm not sure that such a thing even exists. Think you can throw me a bone?"
Yes, I'm a fan of warning people not to buy something that will become obsolete. I was also a fan of VHS over BetaMax. Sometimes being a fan means you don't get screwed. No apologies necessary my friend - you just didn't get the BetaRay memo.