Release 1.1.3 did have a fair amount of bug fixes, however went disasterouly wrong as it managed to get through the QA department, (essentially me), with a serious show stopping bug in it. Managed to get past the BB App world reviewer also, not quite sure how though.
In the meantime I've taken it off sale, and submitted as a priority ticket version 1.1.4 which will fix the 'Uncaught Exception', Null pointer. (13/12/12 16:55)
So, am very sorry about that, but hopefully should be resolved once the fix gets accepted.
The offending code did have a check for a Null pointer where it failed. However got re-factored at a later date, which is where the problem occured. Still doing a check for a null pointer, but too late in the flow. (Schoolboy error)
I didn't notice it, as the object had already been persited/saved, so would never be null on my device. In future will remove the app, and re-install from scratch prior to any furture releases.
Again sincerest appologies Paul