I followed this page:
http://blog.the-ebook-reader.com/201...-without-hack/
In general terms, the steps are:
1. ATTEMPT to install an apk that triggers access to Android's Application Settings menu so that you can enable "Allow installation of non-Market apps". (I write attempt, because the instructions mention installing Go Launcher, which I don't like, and which also broke apk installation for me.)
2. Install the alternate launcher (home screen) of your choice. My personal choice is Launcher Pro.
3. At this point, non-B&N apps are only visible through search.
4. Install Button Savior to gain easy access to the alternate launcher. I grabbed the apk from the attachments here:
http://forum.xda-developers.com/showthread.php?t=865525