They dont look like the same thing at all...
The micro g pen, cloud 2.0, etc are different i am pretty sure. They are made specifically for dabs
Maybe im wrong but i checked and they look different
http://www.alibaba.com/product-gs/1291142677/New_product_vaporizer_wholesale_e_cig.html
You can find the ecig counterpart to every single one of the "vape pens". The atmos raw is an exception afaik, as it was designed for dry herbs it will give really nice hits of oil and you can clean out the carts pretty easy. The one drawback to the atmos is its not the easiest thing to load unless you have hard shatter.
Those clouds work ok, but if you wanna go off the same principle of those and step it up a bit look into mechanical mods with high drain batteries and rebuildable atomizers.
People are are also starting to properly mix bho with pg and vg to open up whole new ways to keep the oil vaporized, check out Graywolfs game changer thread.