Alongside today's release of iOS 4.3.1, Apple has also pushed out Xcode 4.0.1, updating the company's tools for iOS and Mac OS X development. What's New in Version 4.0.1 - Improved Assistant editor logic when switching among different file types - Fixed a bug in "Install Xcode.app" that hangs at 99% complete, never finishing - Fixed a bug that prevented indexing of some projects - Fixed a...