Just wondering if anyone is still keen on intergrating HL7

http://hl7api.sourceforge.net/

is a Java API library for HL7

I noticed that 

Gribbles support Hl7

and

Lablink from idexx also supports recieving inhouse and external results via HL7

also I think in house machines from Idexx support requests,cancellations and census's via HL7

They provide sample requests with the software.

Just thinking out loud