I know myself well enough to suggest that in an alternate universe I am blogging full-time at something called Apple Nation St. Louis, so with today's iPad 2 announcement I can't resist offering a few app suggestions for St. Louis sports-related time-wasting, even though there's no chance I'll find myself with $500 sitting around any time soon. Without further ado, some apps that should help you show off the fact that you just did.
↵MLB At Bat 11: For a sport that seems, at times, unhingedly focused on tradition and history—and I say that as someone who loves tradition and history—MLB is way out in front in terms of online presence. At Bat offers a fully featured Gameday client, live-updating video highlights, and radio broadcasts, and if you're an MLB.TV subscriber you also get—well, all the things you'd typically get with MLB.TV.
↵The downside: It seems to get more expensive every year.
↵Madden NFL 11: This is last year's model, but if you're buying an iPad 2 I can't imagine you'll want to wait until August to check out its 3D capabilities. Madden iPad is a surprisingly full-featured NFL game for a system without any buttons, but it's still broadly touch-based, and there's only so much to be done with that. The graphics are good enough to impress whoever it is you're trying to impress by buying an iPad 2, which is the important thing.
↵NHL GameCenter 2010: The NHL's answer to At Bat, this has gotten some poor reviews in its first season of operation—lots of syncing problems, strange blackout issues, et cetera. But the price is down to $10, so if you're interested in watching Alex Pietrangelo and company on the go now is a decent time to see if it's right for you. And if not, you can just send it another one-star review.