No it's not Sponge Bob, nor CatchBob! but Bob the blimp, a project by Karl Forsberg from the Umeå Institute of Design, :
This product is a robot that can serve as a friend for children and that can help them learn new things by answering their questions. Furthermore, it can act as an assistant in public places, such as hospitals and airports. Thirdly, it can be used remotely, for example, giving museums the possibility to let audiences view their exhibitions via the internet. The robot possesses a superior functionality in terms of mobility and provides new possibilities for other useful ﬁelds of application.