There was undoubtedly more texting in shul this Rosh Hashanah than in past years. In most liberal congregations, texting was likely done as discreetly as possible, often with a cellphone hidden low in one's lap. In some congregations it might have been more overtly outside in the lobby or perhaps outside the synagogue building.
Twitter is still in its infancy and users around the globe continue to discover new ways to use the microblogging application. One national Jewish organization is now looking to release an entire encyclopedia via Twitter. If you think that sending out the content from an encyclopedia in less than 140 characters at a time might take a long time... well, you're correct.
The Jewish Women's Archive has begun to tweet The Jewish Women's Encyclopedia. The Twitter feed can be followed at #jwapedia