Dean posted this in his blog:
Mobility Technical Preview - Technical Details | Novell User Communities
SLES 11 License. This has been a frequently asked question. In general, you must have a valid license of SLES 11 in order to run this technology preview as well as when the product actually ships. This license entitlement is not currently part of any GroupWise buying program including NOWS.
There is really only one way, currently, to get a license. You must purchase it. We are exploring a few alternatives, but nothing to announce or discuss just yet.
In addition, there are some who may believe that their OES license gives them rights to use SLES 11 for DataSync. As far as I can confirm with Product Management, this is not true. Mobility is not a workload that qualifies as an OES workload and therefore is not covered by the OES license. Sorry.
We encourage you to please read and participate in the forums to share your experiences and information with other participants as well as Novell.
I know you need maintenance/subscription for patches and product updates but isn't SLES11 open source? What kind of license is required?