Google's Brian Rose said that the Picasa Web team is working on "some fun stuff" and we'll hopefully see some important changes in the near future. Meanwhile, Google Reader's team posted on Twitter that "the Reader link at the top of Gmail (and other sites) was accidentally removed. It's coming back soon, we promise."
It's still surprising to see that Google's navigation bar is not customizable and you can't add your favorite Google services. Google tested a customizable bar back in 2006, but this feature was quickly abandoned.
Update: A few days later, the link to Google Reader is back.
{ Thanks, Karol and Kristian. }