I'm intrested in buying a AE and I don't know if I need to wait or buy it right now. The last update was in 2009 and apple updates there products like every 6 months. Now a year is past and still no new AE. But there are new things like USB 3.0 and Thunderbolt (things to put in the AE). Is it wise to wait a while for the new one or not? Who can clear my mind?