"I regret to advise that Samsung do not support macintosh with our mobile phones. No software exists to provide usb connectivity with a Macintosh. You may be able to transfer filesto and from the phone using Bluetooth but again we do not provide software to facilitate this."
Bad news I think Murtle. From the Samsung mobile site:
http://www.samsungmobile.co.uk/support/faq.do?faqNo=403
"I regret to advise that Samsung do not support macintosh with our mobile phones. No software exists to provide usb connectivity with a Macintosh. You may be able to transfer filesto and from the phone using Bluetooth but again we do not provide software to facilitate this."
Completely nuts. You could try this:
http://macintoshhowto.com/phone/get-osx-to-see-your-samsung-d900i-mobile-phone.html
Or get a micro sd card and card reader & just install that way.
Or take your phone back....