I do agree with magicflyer. Even if (for example) Jeffrey decides to stop supporting kAcars, i will be able to use kAcars for ever (or based on phpvms next versions). WelkaT, you said it on your own...
So the smartCARS has an expiration date even if it is in 2, 5 or more years... Personally, i liked smartACARS better than kACARS but i want to be sure for something i give our to my va's pilots... Unlimited and Forever are two concepts which does not apply to the internet...
PS: If my server gets down or has many downtimes, i will be able to request my money back or adress to the court against my Hosting company. What about smartCARS server?