Famitsu pulled a fast one with their 'Control Aibo with PSP' trick, which has just recently revealed (to the English-speaking part of the world anyway) to be a hoax. This is why, ladies and gentlemen, the phrase "If it seems too good to be true, it probably is" has lasted so long.

It was a blogger that made this known, as in his/her post, he/she said:

"There is the message game, but lie information spreads to the foreign country, you felt you say, fearfulness of the message game. The ファミ, buying, when reading, " it is what, whether news item of the April $fools' $day while laughing with the orz " however it has parried it is is, don't you think?"

...

Yeah...

Anyway, kudos to Famitsu for fooling quite a bit of the western world.