“I have complied [sic] for you this list of the top 10 hidden gems within the iPhone 3.0 update, which are some of the most important undocumented features so far. If you find any more, make sure you leave them in the comments, so that everyone gets to try them,” Daniel Ionescu reports for PC World.

• Adjustable Song Scrolling Speed
• Special Characters In Messaging
• More Ways to Access Spotlight
• Quote Fragment Within Reply in Mail
• Remove Individual Texts from A Conversation
• Open Link In New Tab In Safari
• Force Quit Unresponsive Apps
• Shake Phone to Undo Typing
• Change App Store Account On The Fly
• Unlimited Number of Apps Can Be Installed

Full article here.

Not to be outdone, The Chicago Sun-Times’ Andy Ihnatko reports on “10 nifty things about iPhone OS 3.0 that i’d have liked to have known from Day One.”

• New options for the “Home” button
• New spoken text control buttons
• Copy and paste retains style and formatting
• Copy and paste works in all kinds of places
• Spotlight search: OIne hell of a great app launcher
• The Search feature is, like, everywhere
• Contacts are now sharable
• Set your iPhone’s contents to self-destruct
• Battery life can now be expressed as a percentage
• The YouTube app no longer sucks!

Full article here.