B&N were listed in the press release as one of the supporters of Intel's new app store, AppUp. This could mean that there is a Nook for Meego app coming some time in the not too distant future. I'm still waiting to hear back from B&N about when the app will be available.
From the press release:
Emphasizing a seamless experience across operating systems, James introduced general availability of the Intel® AppUpSM center netbook app store for consumers. The Intel AppUp center includes both free and paid apps for entertainment, social networking, gaming and productivity, optimized for a netbook's mobility and screen size. To encourage consumers to try new applications, Intel AppUp provides “try before you buy” solutions, encouraging consumers to purchase apps they otherwise might not have. The launch was also marked by the availability of Adobe* AIR applications, as well as apps from companies including Accuweather*, Barnes & Noble*, Funkitron*, Gibson Guitars*, iWin*, Kaplan*, KONAMI*, and Lifetime*.