Fully featured accounting software on tablet is still somewhat rare. What's far more common at the moment are mobile app extensions, which companies like Xero, Intuit and Freshbooks offer right now. One exception is Kashoo, whose mobile app has considerably more functionality than the average accounting app.
Like Mark said, it's rare.
But if you're willing to give online software a shot, you can access your financial information from your tablet. (Online software is "in the cloud.")
Billy's Billing is one of the newest accounting software programs for small business owners. And it is online software, so you'd be able to use your tablet for updates on the go.
Read some of the reviews from beta testers to get a better idea of whether or not this is something for you. Here's the link: http://billysbilling.com/reviews-accounting-software-for-small-business
Hope this helps :)