Catching up on replies to comments in this thread:
My input: great work so far, way better than the v.0.8.0a, more organized, good clean looks, I haven't played in about a year, I'm starting again and using this latest version from the start; I don't see why is it in alpha stage still, for me looks like a beta at least.
To address the "why alpha?" question, we were originally thinking of keeping wxL as alpha until it had auto self-update and maybe also a portable mode on Windows. At this point, though, I'd say it's likely that the next version will be called a beta, even though it won't have those things.
Suggestion for the lighting presets: maybe you could add a image or a small 3D model to cast the lighting on so we can see how the different presets modify the lighting at gameplay.
Thanks for the idea. We thought about using the screenshots from the wiki, but they're of various sizes and aspect ratios and of different scenes, and we don't have permission to use them with the launcher (GNU GPL v2) besides.
Now, if a FREDder with artistic sensibilities and a decent rig could create a mission with a fixed scene suitable for showing off lighting of all types and then take screenshots using the various lighting settings, we could use that.

Alternatively,
the lighting settings may eventually become configurable in-game, in which case this would be less of an issue.
With the new 3.6.16RC1 the launcher does not differentiate between the regular and debug version in the selection screen for the FS exe. or the fred exe. It shows up correctly in the command line but not in the selection screen.
This should be fixed in future 3.6.16 builds. Thanks for reporting it.
Why is FRED execution disabled by default, anyway?
That's news to me.. but if that is the case it should definitely be changed. What a great way to encourage people not to FRED.. 
Mostly because it was a ninja feature by me (at the request of a particular FREDer) and it just never was promoted to a proper feature. However, the current thought process is that in a effort to reduce clutter and confusion in the interface (which we do get complaints about) the FRED launch button along with other future modding tools are hidden by default. The current method of editing a config file to enable it however will go once I have time to write a proper interface for it.
Pretty much this.
<wxLauncher is/is not too big>
At this point, I can't tell whether the concern is that the launcher is too big or that it has too much information in each tab (usability issue?) or that people are just unhappy with the layout. Whatever the case may be, could whoever feels strongly about it please create a ticket in our
bug tracker and
please be precise about the problem?
We're also well aware that while the current UI could definitely use some work, there's no one UI that will make everyone happy, so no matter what we do, someone is gonna be at least a little disappointed. That's life. (And no, we will not provide options for different UIs. It's not worth the added code complexity.)
If the launcher can't fit in a netbook-size screen, then yes, that's a problem, but not something that can be fixed anytime soon. UI changes, especially non-trivial ones, are always a dicey proposition code-wise -- remember that "UI" means
on all three platforms -- and we're currently working on getting the skin system up and running so we can get the next version out the door (ETA is Soon
TM). Including this issue in our bug tracker ensures that it won't get lost.