You've better not do evil

I've been slowly moving my online activities into Google:

Personalised Homepage with tools like To do list and games like Bejeweled and Color Junction. Calendar, Picasa photo album, recently I started using Alert, RSS Reader and Notebook.
All of these, let alone Gmail which was the very first thing I fall in love with Google, makes me wonder about how safe it is to put all eggs in one basket, though the basket seems iron solid and reliable now.