Axel, a suggestion: for screens *other* than the main screen, switch to using the user's Theme fonts. The amount of info on the main screen makes sense you need to control the font, but the Prefs, About, Traffic Watch and so forth should degrade back to my theme font so that it feels like part of my BB, smooth look-n-feel integration.
(right now it's all squishimified down to your hardcoded font, I use the T-Mobile ZEN default 'BBMillibank Tall 8' font for my device and really like it)