With all do respect, I think my iPad2 on wifi broadband should be fast enough. And let's stop making excuses for a mucked up iOS upgrade, at least for the AppStore App, and specifically the Purchased function, although there are many more bugs that are far less onerous.
I have two identical 64gb wifi/cellular iPad2s, one with iOS 5 and one upgraded to iOS 6, both are authorized to the same AppStore Apple ID. For the record I have just about 2000 apps in my "purchased" register. The iOS5 device has absolutely no problem getting the Purchased list to appear quickly. The iOS 6 device, as has been described a hundred times above, just spins its little wheel until it crashes. This happens 99 times out of 100. Since the upgrade when iOS 6 was released, I have tried to access Purchased countless times, several times a day, just hoping it is on "their end" and not an iOS device problem (my end). I have only been successful only twice! Once using 3G while at work, and once yesterday morning using wifi at home.
Who cares if it is device specific, connection specific, number of purchased apps specific, or anything else for that matter. The fact is, iOS 6 is broken for what appears to me to be a substantial number of users, and has been since it was released, and Apple needs to fix it as soon as possible.