OK folks, I have done a bit of research and it looks as though these are not actually made of Ti. I am so gutted.
Here is a quote from the BikePro web site:
"Icon 7000 Series - Short
These are the hands down light weight winner. They are cold forged in the USA using a technique known as backward impact extrusion. A single piece of 7075-T6 aluminum alloy is compressed under great pressure to make the near finished version of the part. These are a 3 3/4" long straight grip tube bar end. End plugs for the grip tube and a second set for your handlebar are included. The 6mm x 1mm thread cinch bolts are steel. These are anodized Titanium Grey and have a pair weight of just 80 grams. $ 49.99"
That's a lot less money than I paid, although things always cost more in the UK anyway.
I'm affraid I cannot vouch for the comments made by Rob1, as I have no idea what other companies may have been involved with icon, although the above quote does seem to suggest that these were made in the US and not China.
I also have seen a comparison table on BikePro:
http://www.bikepro.com/products/barends ... ables.html
And also another on WeightWeenie:
http://weightweenies.starbike.com/listi ... pe=barends
The only thing no-one seems to agree on is the weight. The weight I have listed is from my scales, and the photos are of the real thing.
I hope this clears some things up