So far, the apps I've installed are worth the effort although the jury may still be out on the nookdevs browser.
I like the library app in particular since I can sort in several ways the content stored.
I've had the occasion to play with the crossword app when I was stuck waiting in cue and found it entertaining.
I've found the nookMarket app useful in showing avail. apps and getting them installed directly to the nook. Although a web browser 1.0 would not install "on this phone" which I'll have to look into.
HunterZ, somewhere in the MANY threads I've been to , I saw references to reinstalling the original nook Library app. Yor might want to google or search reinstalling process to see if it might fit the browser question.