I thought the Neo Geo X was the reason the NGS stopped but the Wii is still getting full support. Hell, Ninja Master's just came out for the Wii on Thanksgiving. The Wii has 45 Neo Geo titles in total. It has most of the classics except for KOF98, 2002 and Garou.
I was on the fence about the Neo Geo X at first but then gave in to my building hype. Giant Bomb had hands on with the system and they all felt like it was shoddily constructed. According to the NGX web site, the games are stretched on HDTVs and that cannot be changed. I hope it turns out to be amazing but, honestly, I don't want to drop $250 to find out.