Outside of an iPad purchase, you probably have a lot of purchases you’ve made online. And from those purchases, you have receipts from them in your email client.

Email’s great, but those receipts compete for attention with email from your mom, friends, colleagues, etc. which makes them hard to find when you’re trying to look up past purchases, track packages or find the store you bought some shoes from a year ago.

Enter Shopdeck. Shopdeck is a personalized, filtered shopping experience.

Thanks to OAuth, Shopdeck lets you grant access to your Yahoo! and Google mail accounts. Once authorized, the app mines your email for receipts and order invoices, parses those matches for the useful information, and aggregates it inside Shopdeck.

The app’s home screen becomes a dashboard of your favorite stores… not a random set of stores you don’t care about. These are the stores from which you’ve already made purchases.

Similarly from those same parsed emails, you can get quick access to recent (and long-past) purchases, track the associated packages, and quickly go to site for a particular invoice detail.

Plus, you now have a launcher, search box, and history for the stores you already trust.

And, when I say “now,” I really mean “soon.” Shopdeck was demo’d at iPadDevCamp (thanks to the awesome skills of one Zach Graves), but still has some work to do before submitting to Apple.

In the meantime, see more at Shopdeckapp.com and @shopdeckapp.

(Update: Name updated to Shopdeck to avoid trademark issues.)