Few writers put the kind of thought into user interface that John Gruber of Daring Fireball does, and that shows in his lengthy review of the iPad. It's very much worth reading for his detailed impressions in support of why the iPad is Apple's reconception of personal computing. follow link
File Email with a Key in Apple Mail
In Mac OS X 10.4 Tiger or later, you can use the simple and fun MsgFiler Mail plug-in to file Mail messages using keyboard shortcuts.
New in Apple Mail 4 (the 10.6 Snow Leopard version), to assign a keyboard shortcut to any mailbox on the Move To or Copy To submenu, you can also open the Keyboard pane of System Preferences, click Keyboard Shortcuts, and select Application Shortcuts in the list on the left. Click the + button, choose Mail from the Application pop-up menu, type the name of the mailbox in the Menu Title field, click in the Keyboard Shortcut field, and press the keystroke combination you want to use. Then click Add.
- ExtraBITS for 12 April 2010 (12 Apr 10)
John Gruber of Daring Fireball Reviews the iPad