Innovatronix announced the addition of the Tronix XT3 and the Explorer Mini to their product line with a teaser on their website, one of the key elements that differentiates them from the Explorer XT and XTs is that both the XT3´s and  Mini´s charger for the the internal SLA battery is now bi voltage meaning you can charge them anywhere in the world,  but you still have to buy a version of the XT3 for the specific voltage of your monolights (115v and 230v versions will be available). Also another new feature for both units is that they can use a  car battery as auxiliary power converting it internally from 12/14v to the 24v both units need to work.
The key differences between the XT3 Â and the Explorer mini (apart from their size) seem to be that the XT3 will have improved compatibility with Bi-voltage monolights in a rugged housing while the Explorer Mini like its name suggests is aimed for those photographers who need a lighter weight and smaller power supply (Innavotronix claims is half the weight of the XT/XTs).
For a full list of features, specifications, availability  and prices we will have to wait until mid March 2011, However if  you are assisting to WPPI 2011 (February 21-23 in the MGM Grand Conference Center in Las Vegas) you can find out more about these products in person as Innovatronix will be in Booth 636 .