20MB download cap

iLounge discovered that Apple has stealthily doubled the limit for iPhone over-the-air downloads via 3G from it's previous 10MB cap to 20MB, though the reasons remain unclear:

it could be related to the impending release of the iPad, improvements in carrier bandwidth, or simply a desire to allow users to have anywhere access to larger applications on the App Store.

We're getting 20MB shown in our tests as well, so we'll just add this to VoIP over 3G, and SlingPlayer over 3G, as a sign the data pipes, they might be a loosening...

So what do you think, 20MB a big difference?