I'm keen on the idea of 3G wireless broadband built-in to an Apple laptop. I've seen it on high end Windows laptops, and I've been waiting for Apple to make it.
Now the AppleInsider has evidence that such a machine might be in the works, and might use the Cingular/ATT/international HSDPA standard.
I've been a Cingular customer since I bought my first phone; the Visor phone. Lately I've been thinking of changing carriers to get a Palm OS Treo with EVDO, but I'm waiting until June to see how good the Apple iPhone is. Now I might have to wait a bit longer to see the HSDPA MacBook Pro.