Yes, not everybody has a hardware keyboard, but at some point (large install base) * ( lower probability of having a hardware keyboard) > (small install b

Yes, not everybody has a hardware keyboard, but at some point (large install base) * ( lower probability of having a hardware keyboard) > (small install base) * (certainty of having a hardware keyboard) I'm interested in getting some kind of OOM answer to that equation. > what kind of apps... are you talking about? Well for example, here I am, at this moment, typing a comment to you on an iPad with a hardware keyboard. But to answer your question: heavy email, threaded discussion, bug reporting, data entry (e.g. invoices, grades, tracking numbers, door-to-door, consumer surveys, medical coding, pilot logbook, etc), inventory management, insurance adjusters, real estate listings, pro-grade eBay/Craigslist tools, non-casual games (e.g. Starcraft, Half-Life, etc.), Quicken, MSProject, TurboTax ...