1) I'd like the indication(s) that a file has unsaved changes to be more visible. I think that the first release just indicated this by changing the 'saturation' of the icon in the file browser. The new beta release seems to have brought the 'dot' back to the tabs, but it's still hard for to see with the eyes of someone who has been programming for 40+ years.
While I'm on the subject of unsaved changes, one of my fears is that Apple's new approach to versioned files, while it might work well for things like word processors and spreadsheets and the like will be a disaster for editors used for programming. I want to have control over WHEN changes to a file are visible outside of the editor. I use things like guard to automatically do things like running tests when I save a file, and I don't want the editor (or OS X) deciding when a file should be saved.
So I'd like to have TM2 either not do autosaving, or allow it to be turned off.
2) I was hoping that TM2 would treat text insertions/replacements as a whole to be the unit of undo. (Like TextEdit does). One of my long term gripes with TM1 is that I have to hit Cmd-Z ones for EACH keystroke. I hope that this is just something that the developer(s) haven't yet gotten to.
3) I see that someone pointed out the lack of highlighting the selected line. This is one of those things which my old eyes need help with. I do notice that the latest beta is highlighting the selected line number(s) in the gutter, which I might get used to.
Thanks for finally getting Avian out into the light of day!