Mac and Android versions are now in alpha. Download Mac version 1.6 here: https://mattercontrol.appspot.com/downloads/mattercontrol-mac-os-x/developmentTo try the alpha version on the MatterControl Touch or T10 Android tablets, navigate to OPTIONS and change Update Notification Feed to 'Alpha'.

Thanks for your feedback! Most of your suggestions are either in the works or features we've discussed but haven't taken on yet for one reason or another. Regarding the 10 MB size limit: it's not quite as you've described. It's not the limit itself that's hindering the software, but is a symptom of a larger ball of problems that results in the freezing, crashing, and rebooting to which you refer. In any case, it's high on the list of things to fix along with your other suggestions. If you have other feedback, please let us know. Thanks for your post!

Meshmixer is also an free program this is great for cutting models models. You can look up tutorial videos on how to do it fairly easy.