This sentence worried me though:
>With these great new additions, many customers won’t even >need the bookmarklet anymore.
Without the bookmarklet Instapaper stops being useful to me - I have no interest in another source of information, however 'social' or curated that may be.
I feel that instapaper is trying to move into the 'sharing cool stuff' space, which is already over saturated, instead of concentrating on it's original stronghold of providing a great consumption experience.