I know that you will no doubt be working towards moving CB to the J1.5!+ MVC. Realise how this would be such a massive refacting job and would take some time.
But modifying the CB login module to be MVC would be very good in the meantime and no where near as big a job. I highly customise the module login and usually dread when an upgrade comes along. The template override in the MVC is a god sent and I hope you choose to make the CB login module MVC sooner rather than later.
We added again quite a few parameters in CB login 1.2 RC 2 parameters, allowing for icons, icons+texts, icons within login fields, or icons + texts, icon buttons, and more.
I know it's not MVC yet, and CB login module is due for a rewrite in CB 2.0.
Thanks Beat. Just finding it hard to see how I lived without template overrides in Joomla for so long and hoping would see it in CB soon rather than later. Look forward to it whenever it arrives.