Someones confused. There is no systray in OSX. There's the menubar or dashboard. No systray lol. Anyway, since Vanilla has an atom feed, I'm sure you could easily create a dedicated widget that would feed off Vanilla's atom to keep you updated on topics. If I had my Powerbook still I'd try to mod an existing widget.
i know theres no systray on macs, they have dashboards with dashboards widgets. Until i get my free mac (so never) i use an XP pc with a systray which i'd like a 'widget' on. But i dunno how to do that which is why i asked here.
years ago, i made some rinky-dink visual basic programs that put icons in the systray. but i haven't touched my pc in months. so i'm pretty much no help in that area.
There's 2 ways you can go about doing this mini: The hard way, or the easier way. The hard way involves learning some C#/C++ and crafting your own systray based application. The easier way would be to forego the system specific programming and grab yourself Konfabulator and build your own little javascripted systray popup application. :D
samurize (.com) is a little easier than previously mentioned methods. you can set it up to get atom/rss quite easily, in addition to other system info.