It's getting harder and harder to find actual BL-5Js, not just cheap knockoffs that won't hold a charge. I've been through at least three already, still have about 4 left. But I'm with you on the "nothing better" front. The org-mode app on Android is a joke compared to having an actual full-blown emacs with org-mode on N900, not to mention how straightforward the FS layout is and the fact that git works nicely.