Sony announced today that PSone support will be added to Vita later this month, but that's not all the upcoming firmware update will bring.
Firmware update 1.80 - the update that'll include PSOne Classics support - will also add the Wii U-like Cross Controller mode, a feature for controlling PS3 games with the Vita, as demonstrated with LittleBigPlanet 2 during Sony's Gamescon press conference today.
Playlists will be added to the system's music player, along with new playback speed control and repeat play options in the video player.
Rear touch pad support will be added to the web browser for zoom and scrolling and, at long bloody last, button controls will be enabled on the console's home screen and standard applications such as Videos and Music.
Photos will support the MPO format, you'll be able to take photos to add as attachments when writing Group Messages, and maps will also get some small usability improvements.
The update will be released on August 28. For the full nitty-gritty details, head through to the US PS Blog.