Programming with wxWidgets, 2005, by Julian Smart, Kevin Hock
Stefan Csomor, ISBN: 0131473816. wxWidgets is the toolkit that wxPython
is based on, as such this book is not essential for the use of
wxPython, but it does help to fill in some of the gaps, If you are
considering using wxPython in a major way this book would probably also
prove useful to have on hand.
Of course, if you are using wxWidgets directly, rather than indirectly from Python, then this book would be very useful to have on hand. I got my got of this because the wxPython in Action book was not available at the time I started to use wxPython and found that it was quite useful to have on hand.
What Google will do for you:
To do this the application stack they provide has:
Their environment does allow you to run a local test server, so you can do your application development on your own private machine.
They provide a basic Django template module.
Seems to follow the Python wsgiref module.
An initial presentation of this is in these videos.
One of the things this does is to get you to build things using Google tools which may result in an implementation that is difficult to move to some other service provider without doing a complete rewrite. Whereas if you were using Amazon's EC2 you are writing for a more standard LAMP style environment so you should be able to take whatever you develop and run it somewhere else. Of course, if you keep this all in mind it might not be a big issue, use the Google tools to develop a prototype and test the waters before investing in a full scale project.
With Google's use of Python as the first application language to be supported by this system it has caused an unprecedented stir in the Python community, see:
VBoxManage setextradata VMNAME "VBoxInternal/Devices/piix3ide/0/Config/IRQDelay" 1I shut down VirtualBox, opened a DOS window, changed directory to "C:\Program Files\Sun\xVM VirtualBox" and then issued the command replacing "VMNAME" with the name of my virtual machine. Then I restarted VirtualBox and continued the installation. This time the install completed properly. 
The Panasonic Lumix G1 (also here on PhotographyBLOG) will be the first of the micro 4/3rds cameras, it will have a flip out 3 inch display (it looks like it is fully articulated and can be turned face in to protect it, yeay! this was a feature I really loved on my Canon G1) with a 460K pixel resolution (which still might not be enough for manual focusing). It has a very high 1.44 million pixel resolution viewfinder (so that might be enough to do manual focusing on, but I found that the 900K pixel view finder on the Minolta A2 was not enough for this so I am expecting this will will not be enough, however Panasonic is using a different technology which effectively stacks the RGB pixels so it might be a much sharper display than the traditional pixel count implies.). It got HDMI output too, so you can inflict painful hours of slide shows on your friends and relatives. Digital Photography Review has a preview of it here.