Windows 7 Start Button Size

My biggest gripe about running Windows 7 on a netbook is not the performance but the size of the start button and taskbar on the 1024x600 display. Instead of the usual bottom position, I like to have the taskbar on the side as it is easier to manage multiple open applications/windows. In Windows 7 (and Vista I guess...) the start button and taskbar's width seem to have ballooned, even turning on small icons does not help.
Windows XP:

Windows 7 beta:

Windows 7 RC 1: