(Hi, I'm one of ryno2019's colleagues)
That's a great idea, we're thinking about following the AWS AMI way, where free trial periods are available - and why not make the trial available on any instance type.
I've decided that we're just going to build it out and let people tell us whether they want the product or not.
If you're interested in trying it prior to public availability, feel free to drop us a line at us@supertcp.com - we'll make sure you're the first to try it.
In terms of security, SuperTCP doesn't add any benefits. It's only job is to optimize TCP transmission (e.g. whether you're sending from the cloud to a mobile device, or moving data between regions). Is there a particular problem you're wanting to solve that we might be able to help you with?