SCEE have just confirmed that Lightbox Interactive’s Starhawk is a Blu-ray only title.
The game will release purely on Blu-ray today in Europe and Friday in the UK. It’s presumably a fairly weighty title anyway, requiring a bit of an install to get going.
Sony have moved towards day one digital downloads with the PSP Go (and the Vita, of course) but there’s no such parity yet with the mainline console releases.
Starhawk includes a copy of the original PS1 Warhawk for download.