Not strictly related to the maemo.org style and I dont know how hard could be to adapt to the current database: why don't introduce a color codes for the classic download arrow for each OS version? Next coming tablet will introduce a lot of portings and maybe we could have on same page more download arrows for same app but for different OS, + the colors codes could be used like a general theme to clearly identify which os a page is related to (forums, wikipages etc)