So this is SAP's strategy to drive much broader developer adoption of the ABAP technology in which much of SAP's ERP products are written. (Let's face it they're never going to do it with ABAP by itself! ;-) ) To quote Vishal Sikka, SAP CTO:
"The language Ruby, for example, is thought to have reached a million programmers faster than any other language ever."
Now Blue Ruby itself is still very much still in SAP's laboratory, but when you combine this with SAP's recent acquisition of cloud application platform Coghead's IP assets, and (maybe I'm reading too much into this) you start to see another PaaS play emerging. In the same way that SalesForce have leveraged their leadership position in the CRM space to drive adoption of Force.com and the Apex language, so SAP might play in the ERP space with Ruby:
|Platform||Google App Engine||Force.com||Azure||Bungee Connect||Heroku (Rails over Amazon EC2)||SAP Cloud Platform?|
|Language||Java and Python||Apex||C#, VB, Python, Ruby||Bungee Logic (proprietary)||Ruby||ABAP and Ruby|