HP has countless partners. They aren't throwing all their weight behind one solution.
For example:
http://h71000.www7.hp.com/partners/cerner/index.html
This is the 800lb gorilla in the field, along with 1200 pounders like GE.
Heck, look at this list:
http://h71028.www7.hp.com/enterprise/cache/545394-0-0-0-121.html
Note who is absent?
Or their current Health Information Exchange solutions page:
http://h71028.www7.hp.com/enterprise/cache/545394-0-0-0-121.html
They're actively selling their (owned) EDS solutions. For EMR too.