After the last update I was able to enable Facebook integration finally! And my problem with being unable to view my own account was apparently linked to the fact that I had less then 20 photos in it, which was also fixed at some point, so now the app is fully usable (actually, it is great!). Two features which will be great to see added at some later version are the ability to search for a foursquare venue and (not quit sure how much of your user base does need it, but still) integration with Vkontakte, the most popular social network in Russia (Instagram has recently added this integration to the official apps, AFAIK)