For the iPod touch to be a "serious gaming device", Apple would have to largely slash its standard price. Even so, they will have a hard time in convincing those people who are satisfied with their current iPods to buy them. After all, the iPod brand has been perceived as an MP3 player for many years.
My collection of guides on GameFAQs: Read them here
My latest guide on GameFAQs, for Little King's Story! Read it here