A couple years ago there was almost no choice for people looking for things we loved in VFP.
What I was looking for were datacentric RAD stuff ready for Web and mobile and maybe with royalty free deployment. We want to develop ERPs that don't look bad compared to openerp (now chek how good is the openerp framework and what it offers, sign up for a free demo and check the funcionality of searches, documents and transactions).
The only thing close to this were some oscure frameworks and some completely new languages.
Now I see great alternatives that shows me that we are close to get what we want.

First I looked at FoxInCloud (www.foxincloud.org). I don't know why FIC is not widely used by VFP developers. It has made a huge effort to bring VFP to the web. Maybe the way to enable VFP apps to show in web, the way the samples are packed or the dependency on West Wind Web Connection are hiding how good the product really is, once properly configured. Maybe it needs to redefine certain ways to make the environment work, or develop a simple mode wich make much more assumptions about your code with dummy callbacks that would reduce or eliminate adaptation efforts on forms, just to show the product out of the box. But FIC is awesome.

Then I looked to Lianja and found that it's mostly what I wanted on its own, but at Beta level. The new 5.8 RC is awesome and with the new widget stuff it's amazing. It lets you make a complete app pretty soon and ready for web using VFP on the client and the server. The roadmap shows that they are covering every angle and they have certainly a much wider user base than FIC.

WebDev also seems as a viable candidate (but I haven't touched it, just Windev Mobile). It lacks a CRUD framework as Lianja has, so you are basically doing things the way you do in VFP, starting with a blank screen and creating your framework and widgets from the ground up. Also, you have to learn the language and traslate a lot of french stuff (thanks google translator).

In the field of stuff that are not related to VFP at all I came to wakanda (wakanda.org). This is a very advanced framework with a RAD environment wich do something more than Lianja in its App editor (and something less too). It's a full stack in pure javascript and is very, very good. Also, the price is right (free for server and client) and have a big comunity. It is also a business framework, like Lianja. I was able to develop a real world app in a couple days (the same app I did with Lianja in a day, but that was because I had to google for javascript help, wich I didn't need to do in Lianja since it uses VFP). I'm learning to like it a lot and the roadmap looks impressive.

One thing I recomend to anyone new to this HTML5 stuff is to go and complete the HTML5 course in codeacademy. Now this HTML/CSS/JQuery stuff makes compleyte sense.

I guess that by the end of this year we could count with a very solid and RAD replacement for the Fox.

So, there is the field as I see it now. I would love to hear about more alternatives (not too expensive ones like Servoy) and experiences.
Best regards and excuse my english.