Yeah, I don't believe those June 2006 rumours at all. They're about as believable as PowerPage's rumor that FireWire is going away in the new iBooks. Unless Apple makes some sort of converter for all those DV cameras out there that come with Firewire connectors, there's no way Firewire can be abandoned on Macs. (iPods, obviously, are a different story.)
And a subnotebook/superPDA/super-iPod is on my wishlist, too.