
iPhone *May* Be Running Safari 3
Apple hasn’t said officially what version of Safari the iPhone is running but I have strong reason to believe it definitely isn’t Version 2. It Could be Version 3 which currently is in Beta for OS X and Windows or it could even be Version 2.x.
I recently accessed Google Docs on my iPhone to finish up some Blog postings and was shocked that no error message was displayed. The thing is, Google Docs is unsupported on Safari 2.0.4 which is the latest version of the Safari 2 for Mac OS X. However Google Docs works on Safari Beta 3 under 10.4.10. This leads me to believe Apple has made changes to Safari besides adapt it to the iPhone’s touch interface.
Check the pictures down below
Safari 2 on Mac OS X 10.4.10

Google Docs On iPhone
So it appears that Safari for the iPhone has been updated but in Google spreadsheets I get an error saying that Google Spreadsheets in unsupported and it is very hard to edit or create anything on Google Docs on the iPhone but I can view and edit.
Comments
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Yes it is version 3 because iPhone OS is based on Leopard.
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Yeah it’s definitely not version 2, as it supports stylizing form elements as well. Safari 2 ignored style elements in forms, but Safari 3 uses them. Actually the Safari on the iPhone makes them look better than even Safari 3 on the computers.
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Actually, it doesn’t run Safari 3, it runs a version of safari 2 + webkit 4.
However, it is a version more recent than what is shipping with tiger. Webkit supported the stuff needed for Google docs for more than a year now. If you downloaded Webkit nightly builds you could have been using Google docs for over a year. And form styling has been supported by Webkit for at least 8 - 10 months.
The browser’s client string sent by the iPhone is:
Mozilla/5.0 (iPhone; U; CPU like Mac OS X; en) AppleWebKit/420+ (KHTML, like Gecko) Version/3.0 Mobile/1A543a Safari/419.3
Safari 3beta send:
Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en) AppleWebKit/522.11 (KHTML, like Gecko) Version/3.0.2 Safari/522.12
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The iPhone loads zillow.com, although without flash it doesn’t do much. Only Safari 3.0 will load zillow, 2.x will not.
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I’ve put together some tests for the level of support of CSS3 features in browsers, including Safari on iPhone here
http://westciv.com/iphonetests/
Indications are that support for CSS3 features like border-radius, text-stroke and box-shadow, while present in Safari 3 are missing in Safari on the iPhone.
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