There are approximately 500 apps available on the Android Market currently. In consummate Google style, the Android Market is in beta, and only offers free apps. If we were to impute the number of apps that would be available if paid apps were also included, using the same ratio of free/paid on the Apple iPhone app store (about 1/5 of apps are free), then Android Market offers the equivalent of ~2,500 iPhone apps. That's already 25% of the 10,000 apps that Apple offers!
Progenitor of PC virtualization (now a multi-billion dollar cloud-related industry), serial startup entrepreneur, trend-caster and visionary at the intersection of biz & tech, contributor for VentureBeat / HuffingtonPost / SeekingAlpha, author of the book "The Crowdfunding Revolution | Social Networking Meets Venture Financing", founding team member in a microprocessor startup, author and lead for two Open Source projects, public speaker, prolific idea creator, author of multiple patents, and news and business book junkie. I have a degree in computer science and started my career at MIT Lincoln Laboratory. [email address at trendcaller.com is kevin]