Annoying because:

• Ill-documented (fixable)
• Un-nevow-like: entirely defined in python code
• Inflexible: use of metaclasses to gather info at compile time makes it hard to have forms which vary at runtime

Two ideas:

• Lay out forms as usual, but have special attributes which are tied to python validation code (with defaults such as verifying that a field is an integer, etc..
• Implement XML forms engine