Apple releases iPhone Beta 4 build 7A300g

iPhone beta 4 is yet again faster than the previous version of the Beta. Many bugs where fixed in this release, such as the redial button disappearing after you terminate a call. This is a nice fix, as I do a lot of redialing for work related issues. Not much else has changed. Still no MMS. Still no tethering. Everything else is still functional and more things work correctly. No crashes so far since I have been using it for about 24 hours.