It does look rigid in the screen shot, but on the device you don't see jaggies at all. The font used for those is BBClarity and the Anti-Alias is turned on for those fonts.
I also noticed in the screen shot it looks like the date gets cut off in the icon menu, when in fact it's 2 pixels away from the edge. Ohh well, if you'd prefer a different font for those menu items I could whip one up easily enough.
Also, the icons on the bottom have a text display as well, here's a screen shot of what that looks like:
