If Apple makes good on the features they are promising in iPhone OS 3, then it is going to be difficult to keep my iPhone Jailbroken.

If you haven’t heard of the new features, here is a quick rundown:
(Some information from CNET’s “iPhone OS 3.0: What you need to know“, other information from 148apps’ “iPhone OS 3.0 Announcement Wrap-Up“.)

MMS (multimedia) messages – finally the iPhone supports the feature which is available on most camera phones.
Copy and Paste Text – This has probably been one of the most requested features for the iPhone. The lack of copy and paste was one of the main reasons the iPhone could not replace my handheld.There are a couple of Jailbroken Apps which offer this functionality now.
Systemwide Search - This will let users search for specific e-mail messages, applications, contacts, and any other data from within those applications in one place. I have this functionality at present with the Jailbroken App “Searcher”

Other enhancements include:
In application purchases – Applications will be able to charge for additional levels or features,
Networking between iPhones with Bluetooth.
Notes created with the built-in Note application can now be synchronized back to computer
Stereo Bluetooth – for 3G iPhone and second generation iPod Touch and later.
Built-in Voice Memo application, to replace all those third party applications.

The “Official” Apple video of the Presentation is here.