Recently I've been geo-aligning a few synths at a time and it has really begun to irritate me how short the synth editor if forced to be. It is currently probably less than half the height of my monitor and there is no way to increase its height.
For geo-alignment, this means that zooming in to ensure that I am aligned on small details means that I cannot see how the entire footprint aligns.
I remember originally wishing that I could edit fullscreen in the D3D viewer when Photosynth first released. Clearly, Silverlight rules out fullscreen keyboard functionality, but I still hate that the editor won't at least fill the browser window when I'm using it.
I very nearly posted this in the Bugs forum, but thought that there might have been some rationale as to why you forced the editor to be smaller.