Paul Thurrott posted a review on Internet Explorer 7.0 Beta 3

Back in April, we took a look at Internet Explorer (IE) 7.0 Beta 2 (see my review) for Windows XP, Windows XP Professional x64 Edition, and Windows Server 2003, a product Microsoft described at the time as being feature complete. Since then, the company has been updating IE 7 in several ways, and we can see the results of this labor in Internet Explorer 7.0 Beta 3, released on June 29, 2006, and the version of IE 7.0+ that's included in Windows Vista build 5456 (see my overview and screenshot gallery).

Because IE 7.0 Beta 2 was feature complete, there's little point in going over the many advances Microsoft has baked into that release. Instead, check out my Beta 2 review if you're not familiar with IE 7, and in this review we can focus on what's new in Beta 3. As with previous IE 7 releases, I'm happily surprised by what Microsoft's come up with here. I'm no fan of previous IE versions, especially the lackluster 5.x and 6.x versions, but IE 7.0 is shaping up to be a must-have upgrade. I still feel that most users would be better off with a more feature-packed browser like Firefox. But the reality is that most people use IE and will continue to do so. All of those people should be upgrading to IE 7.0.

Internet Explorer 7.0 Beta 3 Review