There are some new features in trunk: 1)
I got tired of writing default='value',readable=False,writable=False etc. So: Field(':name') is the same as Field('name',readable=False,writable=False) Field('.name') is the same as Field('name',readable=True,writable=False) Field('name=value') is the same as Field('name',default='value') and combinations: Field(':name=value') is the same as Field('name',default='value',readable=True,writable=False) notice Field('name=') is the same as Field('name',default='') 2) db(db.table).select((db.table.field.length()+5).sum()) note operators length(), +5, sum() can be combined in more ways than before.