I got mine up to 1.25G Mem about two weeks ago, bought that Kingmax from Newegg. Gave one old 512mb to my sister and the other one to my bro -- don't want to be greedy here
Their system only have 256mb so they need upgrade more than I do. Beside I get two free big dinners 
I can feel quite a different moving from 1.0G to 1.25G, which is to my surprise
Good news is that I don't feel significant heat increase. May be I will move it to 2.0G unless I find some new announcement to my very liking that will make me want to buy a new system by the end of this year.
So those who hesitate to bring up thier 505 series memory, I highly recommend doing it. Get Kingmax 1.0G from newegg, which is now pretty cheap (I bought 512 upgrade a lot more expensive when I first got my lappy even from Newegg). The upgrade is worth it, my 0.02 cents
Their system only have 256mb so they need upgrade more than I do. Beside I get two free big dinners 
I can feel quite a different moving from 1.0G to 1.25G, which is to my surprise

Good news is that I don't feel significant heat increase. May be I will move it to 2.0G unless I find some new announcement to my very liking that will make me want to buy a new system by the end of this year.
So those who hesitate to bring up thier 505 series memory, I highly recommend doing it. Get Kingmax 1.0G from newegg, which is now pretty cheap (I bought 512 upgrade a lot more expensive when I first got my lappy even from Newegg). The upgrade is worth it, my 0.02 cents







other than the battery problem my m505 is still perfect with no problem 
