There are new patches for iPrint -
iPrint Plug-in for iManager 2.7.3 14 Jul 2010
http://download.novell.com/SummaryFree.jsp?buildid=cUEjhdpx8F8~
iPrint Client for Windows XP/Vista/Win7 5.42 x86-64 x86 2010-07-26
http://download.novell.com/Download?buildid=ftwZBxEFjIg~
iPrint update for NetWare 65 support pack 8 NW65SP8D 2010-07-27
http://download.novell.com/Download?buildid=_ctHVEqexu0~
It also looks like there is a new version of the HP Universal print driver 5.1.0.77
http://www.hp.com/go/universalprintdriver_software
They claim the release is 1 Jun 2010, but not released to the website until recently