well, everyone answered it before, so i'll throw in some of my 2 cents...

1.in the anime it was a mistranselation, Jiraya's name wasn't the one next to Naruto's, the middle name reading is unknown so far...

2.Rasengan: no chance in hell, it's not a jutsu you're able to pick up after watching it once, even with the sharingan.
Kagebunshin: also not likely, he saw Naruto doing it only twice, once at the haku fight and against Gaara, I don't think he was in the mental condition to copy it in either cases.
(and on a side note, Sasuke can't do the mengekyou sharingan either...)

3.maybe it's becuase bloodline guys have a first commitment to thier clan, and not to the entire village, dunno...

4. that was with him, now there's only 8 of them (2*4=8), six of which are still unknown...