I'm not sure it matters which technology is used, or whether technology is used at all. The important thing for me is that time commitments can be made in both relationships and kept to (unless some legitimate emergency comes up). If not, then I feel this shows a lack of respect for the relationship, and this is most definitely something that you should insist on. Just because you don't live with them and are not married to him doesn't mean that he can't make and honor commitments to you, or else he really doesn't deserve another relationship.
Edit to add: I didn't see your post that clarified a lot of this. Thanks for the update.
"Listen, or your tongue will make you deaf." - Native American Proverb