joomla 1.6 compatibility

I have tried to instal joobb components and jooсm on joomla1.6 alpha 2 and have detected that they are incompatible.
Something will be undertaken in this connection?
Our team suggest to make a branch your 1.6 components and as far as possible to participate in its development - a question is how to make it technically? (To acquire the right to commit change)