iPhone OS 4.0 Beta 4 is now available for developers.. This is usual on alternate Tuesdays in the lead up to an iPhone OS launch. Releases may accelerate to every Tuesday as we get closer to WWDC, and the official final release of date.
We will of course keep you updated on what people discover in the new SDK in coming days / weeks.
So far it seems that developers have found some swanky new wallpapers for the new iPhone OS, and also some tell tale dialog changes which seem to suggest AT&T customers may finally be getting tethering.
Of course there is no detail of the costs that may well be incurred for activating that service. It’s likely that AT&T feel more comfortable doing this now that they have technology in place for the iPad which limits video download quality over 3G. Expect that to be put in place for the iPhone also.
Are you excited to finally be perhaps be getting Tethering for your iPhone? Let us know in the comments.