I have a 2007 mb which obviously doesn't have a multitouch trackpad. For those of you trying Lion, how usable is the OS without being able to use all the nifty gestures? I know most (all?) are capable through an app, but still that would seem to take away from the ease of use. I also have some performance concerns. There seems to be a lot of opinions on whether Lion is faster or slower than SL... so I wonder how my ol' mb could handle. It can be pretty suggish at times with SL. I know it's only $30, so I would probably go ahead and purchase eventually (after some performance issues are fixed), but part of me just wants to wait till my next mac purchase. I'm planning on getting a mbp next year after the refresh.