Compact Framework - Need Idea about framework of stock take app with smart device using econnect with ERP

   hi ...

  i have requirement for stock taking system, with smart device(WINDOWS CE) connecting with ERP using econnect microsoft GP..
 i need any help in designing basic framework for this system..whether i can working device with middleware software that will connect with ERP or any other  idea?

Any help will be appreciated,,,

Thanks in advance