On the bus? Boring meeting? Watching a documentary in class? Bust out a great puzzle game on your cell!
JQ3 is pretty indepth for a simple cell phone game. It's got the typical match-making flare and fancy jewels, but the "Adventure" mode actually has a story (Quest) and a few different game modes. The Quest takes you across the globe trying to save someone from a strange illness, and catching a bad guy. The game boards you play on somehow reveal answers to solving the mystery, and offer just enough variety to keep you interested, along with treasures to collect along the way.
Aside from the Quest, there's Puzzle mode, where you clear certain boards by doing specific things, and Speed mode, which has boards you must clear as quickly as possible. You can check your stats as well, to see just how good you are at this little game.
There's also Quick Play, if you don't feel like tackling the Adventure modes. Select a level & game type, and play a quick one.
As far as cell phone games go, this is a really good one. I'd give it a higher score but it's not the cheapest game around, unless you pay the monthly fee instead and have it removed before the next billing cycle starts.