The Acer store is really quite sparse on accessories and add-ons. There are a lot of things (adapters, GPS, receivers, cables, hubs, NAS) that can add usefulness to a tablet or netbook but are not listed in the store.
For example a logical use for a tablet is to read automobile error codes and parameters & what is needed costs less than $40 if you know where to look and what to look for.
Would it be possible to have a space for products that may have been evaluated either by Acer or members as useful for specific devices yet are not carried by the store (frankly I buy a lot from Amazon) or possibly user reviews.
A place for users rather than developers.
(over the weekend I spent a lot of time getting a Patriot Gauntlet wireless storage device to work with Android and Windows devices and some of the Microsoft error codes was interesting but essentially useless without more information.)
I realize this may be somewhat heretical to marketing but if the Acer site were to becone a pointer to other products sites so users start here then the people who now go to Amazon or one of the stores would connect to Acer first.