I'd love to hear if you have. Looking into what can be done with Twilio, minimum versions, rulesets, and any documentation you can find on this feature. I believe it exists but it's like it's not talked about anywhere. Perhaps it's a recent addition? Or perhaps I'm mistaken and the PegaFW-Twilio ruleset (the lone reference when I search on the PDN) is for some other Twilio.
I can see quite a few internal links using Twilio SMS with Pega for some demos although nothing public I can find. Also I can see some industry frameworks may ship some sample twilio integration soon. Stay tuned.