I was quite busy with integration of an accounting system Quickbook with Microsoft CRM 3.0. I have done successfuly the Integration of Quickbook with Microsoft CRM 3.0, in current version I have completed following things..
1. Create Quickbook invoice from MS CRM.
2. Customer Query .
3. Invoice Query.
4. Bill Query.It can be extendable as i am using QBWebConnector (Quick book web connector) & have written web service in .Net to access the above mentioned results.
If anybody interested to work like that, I am here for .... email@example.com