This is interesting, because the lone digital camera in my possession (Casio EX850), handles 2GB SD cards just fine, but there's a firmware upgrade for handling up to 6-8GB cards. Can't say I'm that interested in upgrading, since (1) the camera only writes files in JPEG, which allows up to around 400 images on a 2GB card (and this is with an 8.1MP camera), and (2) I'm worried about any "interesting" side-effects from the upgrade, i.e. if it ain't broke, don't "fix" it. Since 2GB SD cards are relatively cheap these days (unless you insist on the "fastest" cards, which my Casio doesn't really need), why not just buy a fistfull of those?
And, I can't imagine Leica not having an upgrade for compatibility with larger-capacity SD cards. That would count as a major boo-boo in my book. If Casio can manage this (with a discontinued camera no less), why, oh why can't they?
- Barrett