I'm sure this has been asked before, but are there any plans to increase frequencies on some lines from 5 to 6 buses an hour, or dare I say it, even 8 buses an hour? Maybe these lines could receive special branding, just to market that fact a wee bit (some cities use the term "Metrobus", or in Denmark, lines with headways of 5-10 minutes are branded with the letter A, so 1A, 2A, 3A etc. and usually have a special livery). Currently, from what I can tell, most buses in Edinburgh run at intervals of either 12 or 20 minutes, though there's no real way to know into which "camp" a specific line falls. Reducing frequencies on some lines or branding those lines that have headways of 12 minutes or less might make the system a bit easier to use.
I'm not complaining, generally. 12 minute headways aren't bad and I really like Lothian buses in a lot of ways. I especially think that the system's simplicity, as well as website, timetables, maps and consistent service patterns make it very intuitive to use, so there's certainly a lot for Glaswegians and others to be jealous of. That said, for a city the size of Edinburgh, higher frequencies (every 10 minutes or less) would be great and the trams already run at 7-8 minute intervals, as far as I know.