I have about 10 websites online now (with Shozam galleries), and I've looked again at my analytics for resolutions used by people. With what I've found I have to agree that Shozam should move up a bit in resolution size. As an average people viewing the galleries I've built fall into the following resolution sizes:
1024x768 52%
1280x800 13%
1280x1024 9%
800x600 4.5%
Other resolutions come in around 1-2%
This appears to be about standard for all the galleries give or take 2-4%.
At least to me it appears that the 800x600 resolution is definitely becoming outdated. Just my thought.
These statistics certainly won't make me quit using Shozam. The sheer number of positive comments I've received about the galleries far outweigh any drawbacks.