If you design P&ID drawings and you would like to participate in testing the pre-release beta and will provide feedback please sign up at http://myfeedback.autodesk.com to sign up. Use the beta code HarpBeta in the sign up form. For those who already have a beta user login, modify your profile to add Harp to the Beta code.

See Ursula's post in her "In the Pipes" blog Announcing P&ID Beta

Cheers,
Shaan (in Tasmania currently)