How can apps generate early buzz?

A small industry is sprouting up to help developers with promotion and marketing long before they submit anything to the application storefronts. Even major development companies like Zynga (NASDAQ:ZNGA) and Rovio Entertainment don't enjoy the kind pre-launch buzz device makers get for new gadgets, leaving the average developer to wonder how he or she could ever generate advance interest in his or her apps. However, that is starting to change thanks to companies like PreApps and Appspire.me, which cater to developers in a bid to boost their apps' profiles before launch. Special report