I found 800x450 seems to be about the right size, 800x400 falls a little short.

Its annoying how QT Designer has preview options for various styles but not Hildon. It would be useful if we could add a Maemo 5 preview option, as its more important to be able to preview how it looks there than anywhere else, as it differs so much from desktop.

I am still struggling trying to figure how to get the menu to look right. By default its only showing the first menu column and its putting the name of the colum next to the menu option text, wasting space. I will have to figure out from something else how to do it right.