Did we lose the option for Bing basemaps?
I uninstalled 1750 and then put the Beta on my machine, so I already had a "My Default Map.nmf." When I first launched the 2012 beta, the Bing imagery showed up properly. But after switching the basemap to "US Topo", shutting down the app, and restarting, I noticed that Bing is no longer an option. I have also ensured that I am logged into ArcGIS Online, so that should not be the problem.
I do like having the option to finally put text on the map - kudos for that.