[Haskell-beginners] Haskell for POS (business) apps

[glpunzi at lordzealon.com]

Hi all,

I work in a company thath needs to develop some applications.

As IT Manager, I'm on the decision to choose language and platforms.

For the moment, We are developing a POS system. The first prototype is  
beeing developed under Windev(1), but, I would like to move to  
opensource options as soon as posible. For this reason I'm here. I'm  
looking to all this languages thath take my attention to take a look,  
and I'm very curious about Haskell, for this I would like to learn a  
little about it.

For our projects, we will need database access (RDBMS or Objects  
database), reports, serial ports access to communicate with external  
devices (serial display, ticket printers, cash drawers, and so  
on..)..web services..well...all thath a POS application will need. I  
would like to develop for it too, a Desktop and Web BackOffice, some  
application to take orders (PocketPC, Android) and so on..It suppose,  
all of this, will work under Linux or Windows (it's decision of my  
customers), and I would like to do it like a chameleon, to adapt to  
many type of customers as possible.

Then, my main question is: I know (suppose), with Haskell you can  
develop whath you want, and I readed Scala is a good option, but I  
don't like the idea of depend of JVM, and Haskell do native  
executables. Is worth the effort for this type of applications? There  
are libs for this things? It's easy to maintain large projects?

Sorry for my english and lack of knowledge :S

PD: I come from a Delphi and Smalltalk background.


(1)http://www.windev.com