As an 8310 owner one of the biggest difficulties I faced was getting a case for my phone. I’m not joking, I see a lot of cases listed in various sites but they all have 8300 in the name. Do all 8300 cases fit the 8310? Do only some cases fit? Is it just me??
So after hours (well actually minutes) of pain staking work, I can confirm the cases below not only fit, but where appropriate leave charging points accessible. So despite the names these will definitely work with the 8310.
PDair Pouch for the BlackBerry 8300 Curve
Genuine BlackBerry 8300 Curve Vinyl Pouch
Genuine BlackBerry 8300 Curve Skin Pouch