I'm getting all the issues listed in the original post on a stock nexus 7 using jellybean 4.2.2 and the stock chrome browser (same version as original poster). Interestingly, if I use Firefox for android the zoom selector works, and single tap and hold does allow you to pan the screen in pointer mode (although it also selects various elements on the screen and copies them to clip board as well). Unfortunately, dragging a token in Firefox is unbearably laggy. I understand that tablet support is a bit of a beta thing at the moment, and that the developers haven't got the resources to make this a full time project, but you might want to put some health warning on the mobile support page. I paid a subscription to be a supporter on the strength of what the mobile support page said was possible. As it stands roll20 is simply not usable on a nexus 7 at this moment in time. I should say that I don't begrudge paying to support this project, as I think it has great potential, I'm just saying you need to make sure people aren't misled. Is there any indication of how long it might take to have a look at these issues?