...Ascendo Data Vault??? BlackBerry Password Manager
I was a long time Splash Data user for a number of their apps on Palm and Win Mo, but the Splash developers were a little bit slow developing for the Blackberry OS.
Marc and Oleg pretty much exclusively develop for the BB and having compared both products I think they are further along in regard to features, polish, etc.
Ascendo is also very responsive to feature requests, etc and certainly worth giving them a try. Anyway, nothing against the folks at Splash Data, just my unbiased review.