About pyjamas maturity vs GWT maturity (with short dead lines) for a web application
I've managed to deploy a couple of medium sized webapps using pyjamas and believe me, it was very smooth sailing. It's a slimmed-down version of GWT too so it is easier to learn. Most of the UI widgets are 100 lines ish! Also the pythonic use of OO is pretty exemplary.
I love both, python and Java and I have this first 'serious' web application project that I would like to carry out. 
I find it hard to choose between pyjamas + django and GWT + Hibernate.
In fact, from my beginner point of view, it seems like the python world is more suitable for a quickly-developed and fun web application. 
And, on the other hand, the java world is useful for performance-oriented, scalable solutions and for 'serious' projects with big money involved...
My requirements are quite simple: this application has to replace a desktop application. So, the performance factor is there. But my deadlines are pretty short.
Is pyjamas mature enough to replace GWT on a performance and functionality point of view?