This is very minor but provided a hiccup for me getting my first imp to BlinkUp.
On my Galaxy Nexus, my wifi network was listed as an option but with double-quotes around it (see attached). It took me a few tries of the BlinkUp failing before noticing this was not just for the display. On removing the quotes, the BlinkUp worked perfectly.
Version 1.0.1 from August 10, 2012
Galaxy Nexus with Android 4.2.1