The app, when coupled with a BlackBerry Beta Zone account, allows you to over the air download BlackBerry 10 beta releases of applications posted to the BlackBerry Beta Zone. (crackberry.com)
Note that this must be sideloaded as there are no more over the air downloads. (pocketberry.com)
A user in Romania provided the first proof with a screenshot of the over the air download, which brings the phone up to Android 4.0.3 with Version 3.6 of the Sense UI. (theverge.com)