How hard would it be to make an application very similar to this one...

go to (I'm not allowed posting links)

They already have one for mobile. Windows mobile. But I would love something like this for the pre.

You basically input the dvds you own into a database by either title or UPC, etc. You can then see all the cast, credits, info, how much it originally cost, etc. It's an amazing program and I have the free version on my desktop. Would love something for a portable device though.

Think this would be possible to do?