Two points worth repeating
Jonathan Schwartz's Weblog ... no Fortune 2000 customer on earth is going to run the heart of their enterprise with products that don't have someone's home number on the other end. ... no developer or developing nation, presented with an equivalent or better free and open source product, is going to opt for a proprietary alternative.
Those two points are the market's reality. And having reviewed them today at length at a customer conference, with some of the largest telecommunications customers on earth, I only heard the strongest agreement. They all, after all, are prolific distributors of free handsets.
Betting against FOSS is like betting against gravity. And free software doesn't mean no revenue, it means no barriers to revenue. Just ask your carrier.