Not many apps hit iTunes' 2GB file limit, but those that do tend to fall into a certain category (cough games). As a result, developers often must sacrifice graphics quality and effects for iOS titles, the exact problem we pointed out with the recent BioShock iOS release. But Apple has finally lifted that limit, and the max file size on iTunes titles is now 4GB, according to its developer site. That should result in better games, with a caveat. If you decided that $949 was a tad too much to pay on the 128GB iPhone 6 Plus and went for much cheaper 16GB iPhone 6 instead, you may not have enough space for the latest, largest titles.