What Version 4 NEEDS...

Honestly I think the UI of pianoteq is done very lovingly.  I would be quite satisfied if it were a simple QT/GTK GUI with a grey background, if it achieved what it did.  It happens to be both pleasant and useable.  Of course, I'm sure that version 4 will be even better in this respect, but what I am many others are checking the website for daily is not an update on the visual appearance of the application!

I realy agree om this, it would be so much easier to control the sound if it was possible to have bigger slides (is it the Wright word???, it's not knobbs...).

What version 4 needs is a release!

Yes!!! on both a release and a  new UI, even if not for 4.0, but 4.5

I find it such an eyesore and un-modern, especially the fact that it's a fixed window size that I can neither maximize nor resize. Seriously, the only programs that do that are indeed circa 1998 Windows '98 programs.

If you need to keep the old UI for XP users, fine, do that, but surely a rebuild with a WPF or Metro UI would bring it to the modern era. I don't know about what API you use for Linux or Mac, but surely they have scalable UIs too that you could re-use assets in.

I would even make the piano keybed more front and center, perspective style so that it looks like you're actually sitting at a piano and not looking directly down at something in isomorphic space. Seriously, there is a serious disconnect between the audio quality and the UI quality. Don't delay the release of 4.0 for this, but maybe make it 4.1 or 4.2 (after a bugfix / optimization release).

I know GUI updates often accompany major revision numbers, but who cares, better late than never. Something that looks cheap will not sell as well, in this era of ipads and whatnots. You really can't have a fixed resolution UI any more, especially with super high res displays coming out, the UI will be tiny on those if you can't scale up.

I'm pretty sure they're using QT (don't remember where I read that, maybe I'm imagining it), which is why they are able to easily release versions for three platforms simultaneously. Their decision to make it fixed-size has nothing to do with it being "vintage". It's not old or outdated; the UI they designed simply would not scale properly. They could make a scalable interface, but they'd have to rethink the layout. Not an unreasonable thing to do with a major version update. I don't know how their programming staff is organized, but if they have an interface person/team, they could probably work mostly independently of the people who are improving the piano sound models.

Every UI can stand improvement, and with Pianoteq I would like to see different options for the UI. Example: I have a small touchscreen monitor in the closet, and I would love to have a PT interface that was optimized for such a touchscreen. Full-screen window, large buttons, etc. I tried using the monitor for PT, but the window didn't quite fit and many features were too small to interact with.

Honestly, most of the time, I'm playing with my monitor (which is actually my living room TV) turned off and Pianoteq effectively running "headless". I have a few options connected to my NanoKontrol sliders and buttons, but most of the time, it's just a living room piano. Only when I'm recording or tweaking do I actually use the interface.

Yes.  Hopefully we will see photo realistic 3-D pianos rotating on a virtual stage with an animated audience that responds in real time to your input as you play. A spinning disco ball would be a welcome addition as well.
  Ooops...it's not quite April Fools Day yet, is it!  Sorry.

Don't forgete that audience will be able to throw tomatos if you play crap.

Thanks for your input guys. Just wanted you to know that I did put my money where my mouth is - I just purchased the Rock Collection a few minutes ago.