Additional Tweaks Found in iPhone OS 3.0 Beta 3
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I would like to add that there is also undo feature that i found which is quite unknown... how to use its kind of strange... u kind of turn u iphone in an akward way past... i havent exactaly figured it out but its tehre

Any words of calendar appointment link support ? Meaning that you will be able to dial number from a calendar appointment invitation..

Apparently hebrew support was added along with let to right support.

Good news. This indicates Iphone OS support for special charac at last. Can somebody confirm it also supports Arabic ? Cheers

Anything about disabling automatic refresh in Safari? It's quite annoying to load a page, switch to a second page, then go back to the first, only to have it reload again. This would require increasing the buffer size, so I hope they've written that data to disk instead of erasing it from memory.

They should make it so you can cancel the auto recognition of phone numbers. Not every 7-10 digit number you input will be a phone number. I don't want to accidentally call a LD number because of it.

All of these features were already in beta 2

There is additional feature: when you write new sms and you shake your iPhone, then you will get button to cancel it and clear this new sms :)