Well, the safari mobile on iphone is prone to crashes, try and update the iphone firmware thru itunes and see if it helps. the crashes could be the result of some scripts running on GS.
Do you own an iphone? Or have you seen opera mini running on iphone 3G? If yes, i would be very interested to hear about it.
in the meantime, check this
No Opera Mini for the iPhone](http://blogs.zdnet.com/hardware/?p=2901)
It seems that the engineers at Opera developed a version of Opera Mini that would run on the iPhone (and the iPod touch), but this browser will never see light of day because Apple rejected it from the App Store.Mr. von Tetzchner said that Opera’s engineers have developed a version of Opera Mini that can run on an Apple iPhone, but Apple won’t let the company release it because it competes with Apple’s own Safari browser.