IBM plans to offer <A HREF="http://www.eweek.com/c/a/Enterprise-Applications/IBM-to-Offer-SAAS-Version-of-Lotus-Notes/?kc=EWKNLEAU09232008STR1">a hosted version of Lotus Notes,</A> which will bring the enterprise application into the modern Web services and Web 2.0 world. However, such an offering will join myriad other SAAS messaging and collaboration suites in the market. IBM will need to offer some compelling differentiators, such as social software or 3-D tools.