I work at TempoIQ, and we still to offer our storage service. We've launched a new product (as TempoIQ) that is hosted in a private environment and offers storage, historical analysis, and real-time monitoring.
As for the customers on TempoDB, we are working them to transition to TempoIQ if the switch makes sense or offering to guide them in a transition to another time-series database like InfluxDB.
As for the customers on TempoDB, we are working them to transition to TempoIQ if the switch makes sense or offering to guide them in a transition to another time-series database like InfluxDB.