My advice would be to look at Harmony. [Link: logitech.com]

Its the only consumer-available programmable remote on the market. Its not as customizable as your pronto but it comes with a lot of cool stuff like native control of Sonos, Lighting, Apple TV, Roku etc.

You can find it on display at places like Best Buy and there are dozens of youtube videos by end users.

If you really like the TSU-9400 you should check ebay. Brand new ones show up from time to time because some dealer decides to empty his warehouse out and they find a box of stuff like that. We just found like a hundred original RadiaRa devices in ours. They sold like hotcakes on ebay.