This week on the Free App Roundup: Microsoft brings their first ever app to iPhone, TurboTax helps you get a jump start on your taxes by doing them on your iPhone, My Diet Diary will help you eat right and exercise your way to your goals, and I found a bunch of other great apps too, some of which are only free for a limited time. So go on, click through and read this week’s list already.

Finance software company Intuit has or is in the process of rewriting it’s popular Quicken and TurboTax titles for the Mac, from scratch.

Quicken dates back to OS 9, and is a Carbon app. The new version of Quicken, completely re-written, will be called “Quicken Financial Life for Mac.” MacRumors reports it will include many Mac OS X technologies and features:

• Cocoa based
• CoreData for information storage
• Universal Binary
• Mac OS 10.5 Leopard Only
• Coverflow and other Mac OS specific views