More like 20%. 2 grams is twice as much as 1 gram. Do you think you would note a huge difference? Not everything has to be measured in a relative way.
Uh no, it's 25%... basic math. I know, splitting hairs, but you DO have to measure it in a relative way, otherwise you don't have a baseline for the difference. While I do think you'll notice the difference, I don't think this will be an issue, and I definitely wouldn't list it as a negative for this phone.
On another note, how 'bout we give it a hands-on shot before passing so much judgment?