The way they ended "Lost" last night wasn't as mind boggling as the ending to Battlestar Galactica's season was, but it does make for an interesting beginning to the upcoming third season. As SciFi Wire said:

Producers of ABC's hit series Lost, which aired its surprising second-season finale on May 24, told SCI FI Wire that it sets up the upcoming third season, which will focus more on romance -- and on the mysterious Others. "The Others are an important part of season three, and there's a lot of mysteries and a lot of questions about the Others that the audience is going to be curious about going into season three," said executive producer Carlton Cuse in an interview. "And those are the things we're going to explore."

Follow that link only if you don't care about spoilers, or have seen the last episode. With the wrap on the regular season at hand, I'm waiting for July, when SG-1, SG-A, and BSG start up again.