Is apostleship continuing on into the current age? I was watching a video on youtube : http://www.youtube.com/watch?v=nLh8xnf_Qx0 That I didn't have an answer for. He gives the argument that Matthias became the 12th apostle by the casting of Lots. And then he says that Barnabas and Paul were referred to also by the words apostles. So he argues that apostleship continues on into the current age. What is the contest to this?
All he seems to be doing is widening the traditional understanding of the word "apostle" to it's original Greek meaning, which is "messenger". 

I don't see a problem with that on an academic level.   

That being said, I think his redefinition and reuse of the word in the modern world is unnecessary and argumentative.  Why use the word "apostle" when the word "missionary", "evangelist" or "church planter" is far more widely understood, accepted, and has the same meaning in modern language?

I think he would do well to let go of his insistence, and in humility, repeat with John the Baptist in John 3:30:


  "He must increase, but I must decrease"


Because, to paraphrase Paul in Galatians 2:6:  "What we are makes no difference.  God shows no partiality."