Well, the information isn't copied... so if you modified the incoming array you modify the original, so in that sense it has to be a pointer. Arrays and pointers are analogous in C except when they are declared, as there is an implicit allocation of information. Since we don't want this when it comes to array arguments, it simply decays.
I'm extremely excited to check this out! I really like the idea of translators, and low and behold when I log in there's a tutorial on them in root's home directory! I might switch to this if the ui is bearable enough.
The greatest barrier to entry for me for using Plan 9 has always been the documentation, which I hope this will resolve for me. Sure, the man pages are comprehensive, but reading all of them is incredibly daunting and shouldn't be necessary. I have tried to buy the manual packages that Vita Nuovo purports to sell, but all the pages for it seem to be defunct. I have even tried emailing to custom order a copy, but no success.