The Yahoo Application Platform (or Y!AP, if you shorten it and embrace the company's use of exclamation points) grew significantly more appealing today. A deal between Yahoo and Offerpal Media ensures that developers and users will have more payment options. Note: this doesn't just mean that users are presented with a greater number of ways (mobile billing, prepaid debit cards, etc.) to fork over cash - although that's part of it. Offerpal,