I have a project that I used to develop with the Nokia Qt SDK beta. Yesterday I switched to the RC version.

I see there is a difference between how the two does handle running my app on an N900:

• The beta would just compile a binary, copy it over to the device and run it
• The RC creates a .deb package every time, copies it on the device, makes dpkg install it, and then runs it

It is good to see that you now have a packaging system, but...
Obviously, this new approach is quite futile for general debugging purposes. Also, if I have an icon and .desktop file for my app, this would replace them over and over every time, which is a wast of time and effort.
Most people wouldn't want to create a package anyway, unless they wanted to release the app.

I suggest that you give a separate option for simply running an app on the device, and another one for creating a package.
This would make the debugging process much easier