not seen it - I have a Pentel (Version 0.5) and it helped me write most of my songs. I daren't loose it - even though it does get mislaid often.

I have a homing penknife - can't throw it away - too valuable and it would be unkind to the ex (thank goodness) wife who bought it ----- though I have been tempted ............................ it would probably find it's way back.