Will this memory card work for my Nokia 770 with OS2007HE? http://www.amazon.com/2GB-MMCmobile-...1746974&sr=8-3

That's actually one of the best cards for the 770. Go for it.

So the N770 does support a 2gb MMC then? I read that it would only support 1gb?! Is this lies?

I'm assuming that it won't support 8gb, which is a shame, however if it does support 2gb that would be nice as I have the whole of the the first season of The Kill Point to watch and the train seems as good a place as any!

Confirmation on supported MMC cards would be splendid

When the 770 first came out, it only supported 1gb with OS2005, then they upgraded the OS to 2006, it supports 2gb now. So, the website didn't lie, the info is just outdated. I use 2gb all the time. I got mine from ebay for much better price, different brand though, brand new and came with a USB card reader, which is a must have if you want to transfer a lot of data from your computer to your 770.

Technically people have hacked 770 and replaced the mmc slot with a full SD and the new kernels can read all of them probably even a 16GB-32GB but alas they do not make MMC mobiles that large. Some have said that 4GB mmc mobiles will come out some day but who knows. Some day I will try the SD hack on mine.
As of now 2GB is all you can have. Make sure you look into flashing your 770 with a high speed kernel when you get the card it will speed up card access 4x.