I should say I found IE7 Beta 2 to be OKAY though Microsoft had come up with more features like Favourites sidebar having 3 tabs: Favourities, RSS, and History; Simplified toolbars, Tabbed browsing, Zoom, Shrink to Print, RSS, Built-in search, Security, Antiphishing, Improved Internet security settings, Active X opt-in, Address bar in every window, IDN support, One click clean-ups, etc... Looks like, Microsoft has come up long way with much good work from their previous version IE6. So now after the release of IE7 Beta 3, we now got to see how and what developments have they made now. But till now, I should admit even my Firefox 1.5.0.4 has been fulfilling these features already.

Microsoft's RSS team has announced:

IE7 Beta 3 is here! We’ve snuck in some goodies in the feed reading user experience based on your Beta 2 feedback (keep the comments coming!). We are feature-complete for feed reading in IE7, but we’re still looking for feedback to make tweaks and fixes for the final release.

Going through the IE 7 FAQ's, it says:

Upgrading Internet Explorer 7 Beta 3
If you want to reinstall Internet Explorer 7 Beta 3 (or install a newer version) you must first remove any existing Internet Explorer 7 beta versions on your system. You cannot install Internet Explorer 7 Beta 3 over previously installed Internet Explorer 7 betas. To uninstall previous versions of Internet Explorer 7 refer to the uninstall directions below.

The IE team blog has some more details on this.

Let me now download the newer beta version of the Internet Explorer and again let me ask: "Will that happen to be a reason for me to switch back to IE for all reasons? I am waiting. Let me download now and start using."