Update: The new version of "Russian ABC - Azbuka" is placed on android market. This is major update that brings sounds for all letters and speaking of all words on illustrations! Appropriated sound played by pressing of "speaker" button. The sound can be muted by long press on "speaker", in this case the button turns to gray color. Additional funny feature of "Azbuka" is puzzle mode. Each illustration can be broken on 9-piece puzzle.
See screenshots below.
Update 2: Ad-free version of "azbuka" is released. Get Russian ABC - Azbuka Pro from android market.
Search for "Russian ABC - Azbuka" on android market or just use QR code below: