iPhone 3G users, on the other hand, will get MMS, landscape messaging, more complete Bluetooth support, the ability to forward/delete multiple messages and send multiple photos (the touch will be able to do this, too, but it doesn't have a camera so it's not as useful), and voice memos for free.
Push notifications and universal search will also be added, and developers are being treated to 1,000 new APIs. Good news, yes, but the entire iPhone OS 3.0 preview, which will be viewable online later today, leaves me feeling a bit underwhelmed. Most of the "biggest" announcements for consumers should've shipped with the original iPhones in 2007.