[msimon785]

Great T-Shirt. I'd definitely buy one if they went on sale. If not, I might even design my own!
If you wouldn't mind some constructive criticism, I think that amidst the modern feel of the three logos, a serified font is somewhat out of place and would be best replaced with a Sans-Serif font. I suggest a simple modern mono-weight, say Helvetica Neue, for example. Great shirt, though, and don't forget to update if they go for sale!