According to a recent news story, the official release of IE 8 will not be in 2008 as once planned. Basically put, Microsoft feels it needs more shakedown and testing before becoming official – and to be honest I am in 100% agreement with this.
I’ve used the beta version of 8 (which obviously isn’t finished since it’s beta), and while the browser is better at some things than 7 it does need some buttoning up. I do sincerely appreciate that Microsoft is basically stating "We want to know every single possible complaint you have about 8 and address it before release."
Some are quick to say to use Firefox or Opera as an alternative instead of IE, however there are those who (believe it or not) like IE and want to stick with it. As long as 8 delivers (primarily with its enhanced security and privacy), it will be a worthy upgrade.
On a personal note, some have written that 8 is slower than 7. In the time I used beta 8 that certainly wasn’t the case. Tabs were faster, rendering was better and simply put, it was just easier to use than 7. I will be happy to ditch 7 for 8 and will do so without hesitation – but not until official release.