Summary: I must confess, Zebra’s 105SL model is so ancient that I tend to forget it is still in production – but it still is. From what the Zebra folk tell me, they still make it because there are a number of current users who really must get another one – amazing really! So finally, Big Z is producing a new version, the predictably named 105SLPlus. My first thought was why? – why not let this model retire peacefully and have a restful old age.