Question: There are however important differences between regions
Please fix the punctuation.
Fixed: [There are, however, important differences between regions.]

Question: PRIAMs classic simple frame belies a surprising diversity of combination and equipment options
Please fix the punctuation.
Fixed: [PRIAM's classic, simple frame belies a surprising diversity of combination and equipment options.]

Question: WorldLingo news Worldlingo Appoints New Advisory Board Members
Please fix the punctuation.
Fixed: [WorldLingo news : "Worldlingo Appoints New Advisory Board Members"]

Question: A common factor for our mobile projects is that we focus on the story instead of merely creating a technical solution
Please fix the punctuation.
Fixed:
[A common factor for our mobile projects, is that we focus on the story, instead of merely creating a technical solution.]