Are new TLR's like Rollei's a serious or nostalgic camera option? I just happened to read something on (yes I know), dpreview, where someone said that the mirror slap on his Pentax 67 is so massive he muchs prefers a TLR when possible.

Are they very useable hand-hold? or mainly tripod cameras? Anyone know what the difference between a new Expression 2.8 GX and the 2.8 FX would be?