Why worry about downloading?
Sun now has a now bought all the licenses they need for the low-end side of their utility computing model.
I really don't think it will be much longer (3, 4 years) before may small to mid-size web projects simply lease DB space from companies like Sun and connect over the internet -- or just across the colo.
For me, it would mean not managing drivespace for backups, when is it time to buy another server, how to balance RAM between different applications, etc. Just rent capacity from high-performance, optimized database servers.
The developers at work, on their side plate, already have one project this year of moving much of our routine image storage and resultant bandwidth off to Amazon S3.
And MySQL has a huge role to fill without becoming Postgres or Oracle or Sybase -- and my background is largely MS SQL & Sybase (both before and after the split), and I'm doing some Postgres tuning this week. But for the last year or two I've done a lot of MySQL. So I've played with many of the rdms's and find they all have advantages and disadvantages.
For databases that need more flexibility then SQLite, but aren't that sophisticated to need the features of Postgres...I find MySQL easier to setup and tune then Postgres.
For anyone with a ten or twenty million and would like to start a database utility company, fell free to hire me :)