Flash back to ages ago. You wrote a cool Python script (could be also in Ruby, or Lua, pick your battle) to do FooBar, everyone you know was impressed, you wanted to share the love with the world and then some fellow hacker noticed, "That's cool, man. But I don't want to install Python, can you give me the executable?". What would you think?
The situation is similar with Qt these days. You write a nice Qt-based utility, running on different platforms, somebody spots it and the first thing he asks is "Where is the binary?"; never mind he has just grabbed and installed hundreds MB worth of utilities.
These days, when you are developing some software, the first thing you'd do on a fresh machine is to download and install a gazillion tools (Xcode with iOS SDK weighs around 3.8 GB). With the initiative towards open governance, I hope Nokia and others will be able to steward Qt in that direction: being included in the de-facto standard of development tool sets. The most interesting challenge is to overcome the doubt, "Why do I need to install some Nokia SDK to use your cool app?".