Continuing a pattern of biweekly releases, Apple tonight seeded the fourth beta version of iPhone OS 3.0 to developers. Apple also issued a developer pre-release version of iTunes 8.2, which is required to activate the new beta. No new features in the fourth beta version have been revealed as of yet.

>> iPhone OS 3.0 Beta 4 and iTunes 8.2 Pre-Release to Developers Blu-Ray Evidence