Good suggestion for the future app store.
I believe many things about the App Store will change in the near future. Being as it is in the Beta Stage, many aspects are bound to change (Including the ATOM SDK).
Some other consumers are facing similar issues with the AppUP(SM) while for others it works fine.
We are investigating on this.
Please also note that we recommend you to check the Intel® Communities on this link: http://communities.intel.com/community/appup, for up-to-date information about the Intel® AppUP(SM) Beta Center. All the issues relating to the appstore will be followed up on that forums.
Intel® Atom™ Developer Program Team.