Tweak that allows the default mail app to have the pull to refresh feature(similar to twitter app). This app is compatible with firmware 3.x and iOS4 and requires mobilesubstrate
By pulling your inbox list down past the search bar, you can reveal a quick trigger for refreshing like is seen in some popular apps.
Support for Multi-languages:
chinese, japanese, french, italian, german, spanish, korean, portuguese, russian
See More Info below for Screenshots