I don’t know if anyone uses Sketchup but, I got an email today from those folks introducing using Sketchup via Web Browser. For those who might be interested in on the go modeling, you might give it a look see. I have not really used Sketchup but I am thinking about taking Micheal’s course on it for architectural creating.
http://www.sketchup.com/products/my-sketchup
I can tell you it crashed on me a couple of times, which could be to many people trying to access it and check it out or, there are issues with the software.
Happy Creating!