I wasn't saying my $45 extra dollars could support an entire development project. I was saying that I'd be willing to vote with my wallet for the advantage of boolean search features. Likewise, I'd be willing to bet there's a sizable customer base who would be willing to do the same thing. There's untapped, niche opportunities in Evernote's customer base. The software is great, yet I'm sure a large enough base of customers exist out there who would be willing to pay more for Evernote to develop a "Super Premium" edition. This entire website is devoted to a task-organization system that would be made massively better using Boolean search: http://thesecretweapon.org I'd be willing to bet a sizeable amount of their forum base would be willing to pay for a feature like this. Evernote has a lot of niche potential that they're not taking advantage of, and Boolean Search would open up huge, specific application possibilities. No software project is too big or complicated if the money is there to profitably support it.