I found the classic and solo modes lent themselves to 5-10 minute bursts of play. You get a significant bonus for causing a cascade that clears the board, and this creates a natural break in the gameplay to save and quit.Great review - I was waiting for this before pulling the plug on this one. Does it lend itself better to quick bursts of iPhone gaming? Or is it more suited for an iPad session?
The campaign missions where much longer, more involved and time consuming, so I did those in one hit to keep my concentration.