Adobe is seeing increasing pricing of its rich Internet apps that are used by Web developers to create rich media web applications such as online games and interactive visualizations and are superior to typical HTML applications because they allow faster task completion, do not require opening up of multiple applications and are less-error prone.
Aside from the typical mathematical applications obviously associated with your average calculator, we've seen some pretty nifty implementations that took advantage of the not-exactly-advertised features hidden beneath the number pad.