Go to Marek's profile on this forum:
Click on the "About Me"
And you'll see he's got a link there for paypal donations.
Don't pool money. It's always a bad idea. They pooled money for getting interest in an Android port of Cyanogenmod for the HP Touchpad and one of the newest devs, that contributed almost nothing to the project ran off with the whole pool in the first month.
Kickstarter I think isn't appropriate either as it has strings attached requiring the dev to actually deliver very specific goods in order to get the money.
I think direct donations, is by far, the best way