Hey there Kitten,
Yes, as I previously mentioned on a post here on Q2A, I'm focusing on making Frapuchino's Mobile theme a unit of its own. It's gonna be called 'Mobile X' and can be purchased separately. This way I can focus my time and efforts perfecting and running performance diagnostics in one theme, instead of bouncing around and getting little to no things done, in a long term.
But with the new Frapuchino update coming up, a more suitable design is being developed for the Main theme, so you can opt to use Frapuchino's Main theme as the mobile theme for your website, or use Mobile X.
For Aven theme the design looks pretty much the same, so no changes will occur at the moment, but will see in the future when new updates start coming and I feel it's necessary to keep up with the new desktop looks.
Mobile X will basically be a lighter, performance-oriented, second option you can chose.
Either if you like the looks better, or you have a slow web server, and/or feel that having a lighter, fastest website is more important to deliver information.