Thank you everybody for the continued support; we're getting close to releasing the Elevations SOE for 10.1. We've had to make some breaking changes to accommodate requested use cases and it still needs some more testing. Also, we're currently trying to add support for elevation datasets that have NoData values, something we have not done in the past. We do not have a release date at this time, but I'll try to have it ready by the Dev Summit.
Please do not use this sample code in production environments or in mission critical situations; it's just a sample.