Although SAP has build up an image for promising a lot early and delivering somewhere between very late and never, they already shipped an RFID middleware to pilot customers according to this article.

"The Java-based RFID product set includes new SAP Auto-ID Infrastructure software, which integrates and synchronizes RFID data with other enterprise applications data; SAP Event Management software, which tracks and alerts users to supply chain events; and SAP Enterprise Portal. The software runs on SAP's Web Application server, which is part of its NetWeaver integration and application platform."