Some previews... of hottest mobile games

Mafia Wars: New York -- isometric shooter and top-down driver, plus a "wiseman" plot (action)

Lemmings Tribes -- Lemmings, times 3 with special abilities (puzzle)

Star Wars Battlefront: Mobile Squadron -- shooting gallery with a bit online metagaming (action)

Terminator Salvation -- a decent semi-3D shooter following the latest Terminator movie (action)

Sid Meier's Civ 4: Defender of the Gates -- tower defense infused with a bit of Civ4 (strategy/puzzle)