Any issues upgrading a MacBookPro4,1 (Early 2008) to Lion?
I upgraded my MacBook Pro 3,1 (late 2007) with 6GB RAM to Lion. There are no specific problems, but note that the trackpad cannot use multi-touch gestures. Also, the networking circuitry in my MacBook Pro does not support AirDrop, so I can't use that. I noticed inconsistent behavior with keyboard backlighting on my model with Lion, but since I have never seen the need for that feature, I just disabled it altogether.