Google Acquires Angstro, a Social Networking Start-Up
bits.blogs.nytimes.com
bits.blogs.nytimes.com
All evidence from the past notwithstanding?
Great acquisition for Google.
All the cool apps were not done by Google, but _with_ Google. I can't imagine Apple delegating anything, less of all a main application like maps or youtube.
WebKit was not KHTML. Webcore was KHTML and Webkit, which offered a lot more, was built on top of Webcore. Eventually Apple decided to make Webkit open source (Webcore was already open source since KHTML was).
On the other hand you are very much correct on multitouch, and I would also mention Lala, and their ads company. Also iTunes was acquired. And of course the biggest acquisition of all (for Apple): NeXT. :)
GMail and GReader on the other hand where two of those projects that Googlers did in their 20% assigned to personal projects. No idea about the other two.