I think that with the High Definition video upgrades to their software suites, Apple is readying themselves to release units with the HD DVD burners.
Inorder to obviate any legal implications; I have no specific, nor Apple insider information. This is speculation on my part based on info publicly released by Apple.
Also, if they follow their previous patterns ( a big "if"), OSX Tiger should be released in May/June, and new towers and Powerbooks in October. Would the blue laser HD DVD's be ready for that? If Pioneer (a very aptly named company IMHO) releases these units say within the next three months, then I'd say, yeah, probably.