THink there is a thread on macroumers.com where people have done this and moved thier media onto it. Some seem to work fine but others break when you cut off the USB part.

buy one of these, cut the usb bit off. http://www.ebay.co.uk/itm/190709340632?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

Macsales.com is about the only viable option i saw when i was looking into it for a client a while back; was around £250 to get a 240GB drive delivered (inc import duty/tax).

Edit - they also do a kit that includes and external aluminium usb bay for the original SSD drive.

[Edited on 23-02-2013 by Dom]

http://eshop.macsales.com/shop/SSD/OWC/Aura_Pro_Air_2010

Apple do not provide any service for upgrading internal SSDs are far as I am aware, specially not the Macbook Air, its regarded as non-upgradable

[Edited on 23-02-2013 by Rob_Quads]

Or do it yourself:

http://www.everymac.com/systems/apple/macbook-air/macbook-air-faq/macbook-air-late-2010-how-to-replace-upgrade-storage-ssd-hard-drive.html

If your Macbook Air has an SD slot, you could get a NiftyDrive and a few 64gb MicroSDs for considerably less than it will cost to replace the internal SSD:

http://www.kickstarter.com/projects/1342319572/the-nifty-minidrive

[Edited on 23-02-2013 by evilrob]

whatevs :P but yes, storage

Sorry I can't help but please don't call it memory... you're talking about storage, not RAM.

(No external HDD answers please, i need/want internal memory... i already have a non-Mac external HDD which I use as my Time Machine)

I have an Oct 2010 MB Air 128GB and I need to put in the extra 128GB as ive totally run out of space :( Do I just take it to Apple? How muchos etc.?

[Edited on 23-02-2013 by Robbo]