Rumours are still flying around about the details of the upcoming Service Pack for Vista. The latest information received is that according to news.com, the complete uncompressed pack will weigh in at 1GB. That's more than some operating systems from scratch (at least the size of the XP disc).

Before panic really sets in, Ina Fried pointed out that a fully patched system will only require a 50Mb download. That strikes me as from the sublime to the ridiculous, suddenly I start wondering what it will actually contain. That's a lot for pure software, but not much when extra media is included.

I also wonder if there will be different classes of Service Pack. There have been some Ultimate Extras released since Vista arrived so it would make sense for those to be included as well. The video wallpapers and poker would certainly add to the service pack size.