Has anyone used wxWdigets for cross-platform C++ development? If so, how did it go, and what compiler did you use? (I used the mingw one, for Windows, and a simple program consisting of just a frame ended up being 20Mb in size!!).
For Basic, there is RealBasic, which is downloadable for free for Linux development. To do crosss-platform stuff, you'd need to pay for the Professional edition.
I've used Java too - I quite like Netbeans 5. You get the JDK and IDE all in one download, and the layout thingy (Matisse) is great.
I'm considering doing some cross-platform stuff, as I've only developed for Windows before now. Still trying to decide between Java, C++ (with wxWdigets) and C#. I've heard of Mono, but last time I checked there's been no development w.r.t. Windows forms.
Hope it helps,
Adrian