Ubuntu vs Angstrom

Hi!

Why Angstrom?
Why Ubuntu?

Which one is "better" for beagleboard?

I prefer Ubuntu, because I've got less experience with linux, and in desktop PC I use ubuntu only. But I don't know it's good enough for my application.

I would like to make an embedded media player product with OMAP.
(Later we'll redesign the whole board...)

Where can I find the latest patched kernel source, or kernel image for both (angstrom, ubuntu)?

Thanks in advance,
Arnold