I don't like a rude awakening and want the alarm clock on my iPhone not to vibrate when it rings. Is there a way to turn it off just for the alarm clock and leave it on for all the other alerts: calls, sms, email etc...? Does that seem like crazy idea?

Yes, I have the same issue. The vibrate behaviour of the alarm follows that of the call ring; nothing can be done about this, apparently. The vibration is extremely annoying in my situation. I've tried numerous plist edits but haven't found any that worked. Anyone with ideas?

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iPhone 3GS / 3.1.2 JB (PwnageTool) / 04.26.08 carrier-locked, Carrier Logo Fixer / Cydia / 1000 posts on Hackint0sh

Installing Cydia programs on a phone that has no internet connection: read this.

Editing binary .plist, .strings, .nib and .xib files:
* on your computer: Windows tool / conversion website.
* on your iPhone: convert those files in a terminal with plutil (installed with Erica Utilities) or edit them with iFile (Cydia links).