from api mailing list:
"Recently, we documented a new pagination mechanism for our "social
graph" methods, /friends/ids and /followers/ids. Traditional
page-based pagination doesn't dovetail with our recent backend
changes, and we've now exposed a cursor-based pagination mechanism
that's far more reliable.
"Today, we've documented that this new pagination mechanism is also
available for the /statuses/friends and /statuses/followers methods.
With that change, we're setting a hard deprecation date for
traditional pagination on these four methods: October 26th, 2009.
That's over a month from now.
"Once deprecated, we'll simply ignore the "page" parameter if it's sent
by a client, and you'll get the default number of items for the method
you're calling.
"For more information, see
http://apiwiki.twitter.com/Twitter-API-Documentation. Thanks."
updated in 1.0.1