Someone else on Slashdot posted some interesting replies to this rumor...
Bold is the original post
Italics is the responses
Disclaimer: I am not under any Apple NDA, nor does any of this information come directly from someone under NDA.
In other words, you're making it up entirely, and using the disclaimer to actually increase your credibility.
There is some new hardware coming out, sometime between "now" and "the end of 2005" (how is that for vague).
Hey, that's very good! Since you're not actually saying anything specific, you can't possibily be proven wrong!
Nevermind the fact that Apple releases new hardware every six to twelve months anyway, and a dead monkey without a brain could tell you that they'll probably release something later this year.
This new hardware will require extra drivers and code to support some new features.
Wow. I've never heard of new hardware requiring drivers before.
The beta testers have only been able to run Tiger on this hardware, released versions of 10.X don't work much, or at all.
What "beta testers"? People with developer previews, or people inside Apple? Why *would* it run on older versions? Backported drivers have *always* been released after a product launch. Even if you aren't making this up entirely, your conclusions are ****ed.
Since releasing Tiger before the hardware is announced means that legions of Mac fanatics will be picking it apart, they will quickly find the code relating to new hardware names. So it is almost a certainty that Apple will release Tiger at the same time they announce the new hardware.
You don't know what "certain" means, do you?
The hardware might ship later, but at least it will be announced by the Tiger ship date. Tiger may be announced as much as a month in advance of its ship date, if past announcements are any guide.
Ah, it seems you don't. Once again you've mastered the rumor-site technique of being so incredibly vague and covering all your bases, that you can't possibly be wrong.
So the speculation is centred around which events in Apple's calendar would be good for announcing a new round of hardware upgrades and new models, as well as releasing Tiger. The WWDC has been a favorite target until recently, as it is now approaching rapidly and Tiger is still in beta, MacPsychics are looking further into the summer for good announce dates.
Tiger isn't "in beta", it's had a dozen or more very different development releases, and I can say (having used several), that it's very mature and and (sic) as close to "finished" as you can get. The official bug list from a recent build includes only includes some really rare and obscure issues, mostly relating to foreign language support (which is hard to test for extensively).