One of the more obvious complaints about Google is not about their products but rather how to find all their products and manage how you have access to those products. Google just launched the Google Dashboard which brings many - not all - of this in one place.
The Dashboard includes over "20 products and services, including Gmail, Calendar, Docs, Web History, Orkut, YouTube, Picasa, Talk, Reader, Alerts, Latitude and many more." Here is a video demo on how it works:
A WebmasterWorld thread has early discussion around this topic. Right now, the feedback includes "it's about time" and "Well, it is a start..."
Forum discussion at WebmasterWorld.