You can't download it because it is not a free tool. You can purchase it here:
http://www.btsoftware.com/products/sysmechm.htm among other places. That site has a link to download a trial but it doesn't work for me. The Iolo site has information and an update to download here:
http://www.iolo.com/sm/6mot/download.cfm You have to register your purchased product to get the update. Interestingly Iolo specifically says that there is no downloadable trial because the software does not install, it runs from the CD. That is likely what causes the confusion with the person who thinks it is only for mobile devices. It is not for mobile devices, it is for your toolkit that you carry with you, thus the "Mobile Toolkit" name. It works on all PC based machines. And well worth the money.
