Hi Ivan,
I too attended replay of this session and got to know that Fiori Inbox is available in 2015. if this is your requirement, you can connect to SAP for exact dates.
But Unified Inbox is available today, if you have your SAP Gateway 2.0 at >= SP08 (or if your netweaver version is 7.4, SAP_GWFND at SP07)
Unified Inbox using the following URL: https://<server>:<port>/sap/bc/bsp/iwpgw/tgw_unif_inbox/index.htm
Best regards,
Tejas