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
Copy Existing Filename to 'Save As' Field
While many utilities provide file naming automation, they're mostly overkill for those cases when you need to make small variations in file content while ensuring the documents group together in a "by name" list.
In the Save As dialog, the default name is the current document name. You can quickly change this to match any existing file.
1. Make the list of files the active element.
2. Click on a grayed-out filename, which momentarily turns black.
3. The Save As field now contains the filename you just clicked.
You can modify the name (adding, say, "version 3") or overwrite that existing file you clicked.
- ExtraBITS for 12 April 2010 (12 Apr 10)
John Gruber of Daring Fireball Reviews the iPad