What do you think of flash fiction?

Do you read flash fiction? Do you write stories of this length?

After writing a how-to do it piece in the Guardian, David Gaffney wrote a warning:
'...writing micro-fiction is for some like holidaying in a caravan – the grill may well fold out to become an extra bed, but you wouldn't sleep in a fold-out grill for the rest of your life.'

I wrote a post about flash fiction in The Hastings Online Times but I'm still wondering about it. What do you think?

for more information have a look at:
Flash fiction - kerpow! Angela J. Phillip in Hastings Online Times
Stories in your pocket: How to write flash fiction David Gaffney in the Guardian
Image from publicdomainvectors.org adapted by Paul Way-Rider