After successfully installing the latest SSRS "Denali" CTP SharePoint mode Service and SSRS "Denali" Add-in for SharePoint 2010, if you do not see "SQL Server Reporting Services" in the Service or Service Application list:
Then it is likely the SSRS Shared Service did not get registered with SharePoint correctly at the time of installation. This state is also expected behavior if SSRS SharePoint mode was installed before the SharePoint installation.
Work Around
To register and start the SSRS SharPoint Service, complete the following:
HTH