From what I've seen on Youtube, Qt 4.6 is well worth the effort - it seems to produce some serious 3d graphic effects and be a good upgrade. Besides, this game is going to be so popular it will be demanded on all platforms. People would refuse to upgrade to maemo6 if they couldn't have sheep.

Is't in extrasp-devel yet - nothing other than 'sheep-drawing'. I'll keep checking!

Edit: first stupidity - it's in upgrades, not the untried list.