Good news iPhone 4 users; despite being being told that the free bumper (or case) wouldn’t be shipping for 3-5 weeks, word on the internet is that many people are starting to receive shipping notifications. So heads up if you’ve already ordered your free case or bumper, and a gentle reminder to go and do so if you haven’t already. Apparently this isn’t an isolated incident either, as TUAW reports that multiple iPhone 4 users have reported the same thing happening.