I understand this is a may be a very premature question given that the current build is for testing Ubuntu Core, but I have just bought a Nexus7 to join in with this Ubuntu on mobile adventure and can't help wanting to start writing some apps! I haven't really dabbled with either GTK or QT for touch apps yet and, having seen that Ubuntu TV is using Nux, I wondered what people on AskUbuntu-land would recommend. Hope someone out there know this! Cheers