4Dst specializes in apps that bring various services to standard GSM phones.

  http://4dst.com/products_dal.php
  http://4dst.com/products_ees.php
  http://4dst.com/products_rvw.php
  etc.

They use Squeak.

On Thu, Sep 8, 2011 at 5:29 AM, Dimitry Golubovsky <golubovsky at gmail.com> wrote:
> Hi,
>
> As the "search for a killer app" is going on, what does the Smalltalk
> community think about possible uses of Squeak/Pharo on mobile devices
> - phones and tablets? Now that the Android version of Cog is available
> (though labeled alpha, I  do not expect adding much to the VM core,
> just some facilities to interact with Android via JNI, before it
> becomes beta), are there ideas what existing aplications could be used
> such way? I think a "selling point" here might be that applications
> run uniformly on a PC and on a phone/tablet, may have similar or same
> look&feel in both desktop and mobile environment, etc.?
>
> I have an application I am working on (which was mainly the reason I
> am working on the Android port), but it has rather narrowly
> specialized use and is written mostly for myself. I'd like to hear any
> ideas of possible mobile uses of Smalltalk.
>
> Thanks.
>
> PS Among other things, developer's experience with mobile Smalltalk
> must be good (judging by my own impressions of course): you have a
> convenience to develop/debug your application on a desktop, set window
> size to the target device resolution to emulate smaller screen, then
> transfer the image to a tablet/phone, and having the application
> running 99% same way as on a desktop. And the development environment
> with debugger is still available (unless deliberately stripped off).
>
> --
> Dimitry Golubovsky
>
> Anywhere on the Web
>
>