I guess additional info might help: I've been talking with an angel and he's been giving off strong signs that he intends to invest (due dilligence, financial discussions). As a courtesy to him, I've been postponing intros to other angels and vc firms. However, I haven't gotten anything firm from him a week after our meeting (with sparse communication) and I'm wondering if I should still be delaying talks with other investors.

I'd personally cut back on all of the "tabs" in your layout. Really confusing and there's probably a better stylistic solution to what you're trying to accomplish.

I don't think there is something in design that everyone would be happy about. We've tried several things on UI, before we came up with the tabbed layout. I'd be very thankful for your practical suggestions, though. Thanks.