Am I the only one that notices this?
Check for yourself. Set your browser to desktop mode and log in to gmail.com. The left pane doesn't behave as normal.
Also, if you set a background pic on your google homepage, the search bar is gone as well as the settings tabs across the top. You can poke at the page and eventually the search box will show up, then you can slide it all over the page.
Other websites are weird too. If more people don't notice there will be no reason for google to look into it.