At 11/06/2013 the Twitter API v1 has been deprecated.

Resulting error, when using the XPagesSBT demo applitions:

Error calling twitter service with url https://api.twitter.com/1/statuses/home_timeline.json
HTTP Status 410, Gone. HTTP error response code received in response to request to url: https://api.twitter.com/1/statuses/home_timeline.json?count=8&page=1

Version seems to be coded as a contant in TwitterDataSource.java

The new Twitter API v1.1  only supports JSON, so i think it will have impact on the Twitter search functionality as it uses the XML format.