This is a quote from InfoPath 2007 help file.
"Long data types, such as pictures, images, OLE objects, file attachments, and Access Memo or SQL data types, should be excluded from the data connection. InfoPath does not support data connections to these long data types. To exclude specific fields in the database, use the Data Connection Wizard to set up the data connection."
I found this to be true when submitting to a SharePoint list when using v.2.
I was wondering if anyone can explain why this limitation exists and if there is a possibility that the long data types can be submitted to a database or a SharePoint list?