Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
If it's not the new model it won't be simultaneous dual band or have the remote iDisk through MobileMe. I think that you can do the iDisk think without MobileMe. I'm going to find out tomorrow when my Time Capsule arrives.
 
Your link ---> is a FB276LL/A 2008 model = no dual band
New Time Capsule ---> FB276LL/A 2009 model = Simultaneous dual-band Wi-Fi
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.