Ok this is to update what I have learned about Gwen since my post durring pre-searing. ______________________________. There I'm done.
Squat! Absolutely Squat! I held onto the shred from pre-searing ascalon until Draknors Forge and nothing. I'm now lvl20 with a shred still in my safe. But I have come to the conclusion that Gwens main purpose is to be a makeshift Healer Henchman. She doesnt do too bad either. She travels well and her music doesnt suck. Her healing... meh. In the end I doubt seriously that the guys at Anet have plans to make use of the tapestry shred other that to enrich the story line a little. As a ranger though when I went into several quests I had quite a group. 1 ranger, 1 pet, a second PC n00by and a Gwen. We never died but I cant say it was to Gwens credit alone.
As to the Tapestry Shred itself... I can only speculate. Maybe she will only begin healing you after she gives it to you. Sort of a way for the cpu to know she can...?
