I am developing a playbook app, where I am creating multiple databases. Can I get the location of the file/db created. I need to delete that Database, but I couldn't find a way to drop it, so I am planning to delete the file that it is stored in.
You can't drop SQLite databases, as you have found (hence my suggestion to simply drop all the tables).
However, if you really must delete the physical db file, I think your best bet is to mount the PlayBook's file system, and then track the file down. This link may help in explaining the file system layout on the PlayBook: