Thanks for the feedback Rob and for trying out the Android app. We definitely do participate in the forums here and love hearing from users.
First of all, I hear you loud and clear on the Beacon connection. We've already worked with Griffin to bring some improvements in this regard (make sure you're using the latest version of the Dijit app and that your Beacon firmware has been updated, Dijit will prompt you if there's a firmware update available). We're continuing to work with them and are planning more Bluetooth performance improvements too. A concern here is battery life, so we're doing our best to make things more speedy without wasting too much power.
We're actually adding activities to the Android app as we speak. As we said on the blog, we're targeting mid-December, so stay tuned for more news on that.
Sneaky, albeit awkward, trick to get rid of buttons stuck below the black command palette at the bottom of the remote editor: first, start to move another button with one finger. This will make the black palette bar disappear. Without letting go of the first button, use another finger to tap the deletion "X" of the stuck button. I actually just adjusted the scrolling of the command palette last night to help prevent these accidents (this will be in the next release), and will try to improve this more in the future.
-- Zach Lipton, Dijit Software Engineer