Thanks for the answers!!

My concern about the avaliability of KT is because i have seen some comments on twitter of people saying they are looking for KT and were not finding it to buy. But i think in the 2 weeks my father is going to be there (In Miami and New York) at least one he will find!! hehe
In Brasil is VERY hard to find this devices and if you do, its extremely expensive.. live 400 dollares or more..
But the problem in the Ipod Touch app make me feels a little scare that I buy it and it didnīt work with my books. I have more de one hundred books in portuguese, the most were PDFs files and I transform it to epub files to make it easier to ready. In iBooks they all works perfectly, but in Kobo donīt. But if guys arenīt having problems this way maybe the two systems are diferents. I will take the risk! hehehe
Thanks again for the help. When I have my Kobo Touch in hands i tell you if everything was ok!