Not a rebranded iOcean x7
I have examined my own neken now that it has arrived, and had a look at the iOcean x7 pictures. The body of the phone seems to be identical, though slightly different speakers, cameras and sim setups have been used. The photos explain everything. 3.bp.blogspot.com/-R53mEmLNy_o/Uai6ARSKEyI/AAAAAAAAAPQ/aujjIequW0A/s1600/DSC_0348.JPG
Likely, a manufacturer offered slight a customization of the iOcean to neken, similar to what seemed to happen with all of the Galaxy Note clones. I am not sure whether a ROM would work though, as I have not been able to find any really good specs on either phone. I have not been able to compare the stock ROM's either, though on neken,cn (sorry can't post links yet) there seems to be a link, but I can't seem to download it. I have got an iOcean ROM though, I guess I could compare the two if I was able to get hold of even the stock neken one. I am not really sure if the source of the neken ROM is on the website, as it is in chinese and I have to use Google Translate. I tried contacting the email listed on the neken,cn website to no avail.
Aside from the differences in the images, I can't really make any detailed comparisons. Hopefully I can get in touch with someone with an iOcean x7.