No, that isn't true. The iPad has a totally different processor. The only thing it shares with the touch is the operating system, which is scheduled to be updated very soon. They're announcing new iPods soon and the word is that they will include the new processor and a completely new os designed for the new chip.
The ipads battery is twice the size of a touches battery and has four times the charge.
Deconstructing the iPad's A4 Chip: It's Still a Giant iPhone - Apple a4 teardown - Gizmodo
The A4 and the A8: secrets of the iPad's brain
iPad's A4 processor uncovered | Hardware 2.0 | ZDNet.com
that isnt the word, the word is that the OS was built on A8 tech so it moves seamlessly to the A4 as it's the same architecture. why would a company completely rewrite an OS to accommodate a chip? they wouldnt. especially not a powerhouse like apple. chip manufactures build stuff for them that can be used as painlessly as possible. the chip may be new but it isn't "totally different".
also, to those with the wifi problems apple has released a "fix"
Apple confirms iPad issues with dual-band WiFi routers, offers fix (sort of) -- Engadget
and really, to each there own. i think this is a useless gadget and is all hype. if you love yours then love it. i dont appreciate the spreading of misinformation though.