Ya lots of people would love to have this amp model, including me. I wouldn't say they've added a bunch of amps since the HD500 first came out though.  They've added 2 and some more channels to some of the models that were already there.  That said, I'm not complaining, the models they have are working great for me. And since they added the cabinet DEPs, every amp model is useable.  I'm back to square one just scratching the surface of what this unit is capable of.  Of course, it took me seconds to tweak my existing patches because I pretty much had then where I wanted them.  It's just that now I have to go back and revisit all the other models that I have been overlooking. 

Given that these pods were meant to pair with the DT amp series, there would be no appropriate matching tube topology. I think that may be why no solid state models exist.

it's on my wishlist as well...

and i know they are aware of the communities desire for this model...

so i'm certain that its at the top of someones shortlist...

just don't expect new amp models to come quickly... they've just released a small amount with the updates here and there.

I would say if they just came out with a clean preamp type model or if they not only included the new studio pre in the FX blocks but let it show up in the amp block as well so you could add a cabinet to it you could probably cover a lot of the ground that you would cover with the JC120.  As Meambobbo points out a little chorus and your off to the races.  This does present a nifty little challenge though, see if I can find some good JC120 sound samples on youtube or elsewhere on the net, and see if I can try to make a patch that sounds like it with what's in there.

Ooh, I like the Ampeg simulation. Seems like a bass amp is the best bet for jazz guitar. Although, he never seems to play any mf-ff notes in that example, like some solid Wes-style octaves - I wonder how those models sound with a little more signal... though my jazz chops are not up to demonstrating that.

you could have bought an XT almost 10 years ago and had a JC120 sound too.... the fact that you waited until some kid in his basement labeled his latest app as such....

well that's where the funny comes in......

It's really too bad that you made this post because I can see it getting pretty harsh on here for you.   The fact is, those apps can be fun if you are travelling and have nothing else to play through but they really aren't gonna cut it in any real scenario.  So no one is going to take your post seriously. If your only ever going to be sitting in you house playing through headphones or your stereo, maybe the HD500 is more than you need and an app will do the trick.  But if you planning to play live I would really recommend you hang on to your HD. If you're get creative and learn how to use it you can get almost any tone you would ever need with models already in it.  Of course it's nice to go straight to a known model to get started but if you think of it from the viewpoint of what sound do I want vs what amp and start looking at what you have already in the HD to craft your tone you'll come up with something.  As a benefit you'll learn how to use your gear better.

not likely... given that we know what the hd300 people got for amps... i think that's what we can safely expect...

not to mention that all of the amps except for the ampeg bass model, that have been modeled to date, are tube amps...

meaning i think that's where there focus is...

i need to try meambobbos tone above, and hopefully that will get us close...

i know the jc120 is often requested, so it will likely happen eventually...

i just don't think that the immediate future is likely.