I installed the Beta5 (1.04b) and then the Audible Player from the memory card. I was able to logon to my account and download an audiobook and play it. Then I closed and started it a few times and it didn't crash and reset the storage.

"At last!" I thought. Audible on my N810. Then a tried to start the calculator and it crashed and lost everything. I need to try installing to memory card instead of the internal storage. Still. promising so far.