[rexboy]

Currently using VITO sms chat and SBSH Calendar Touch. I think VITO with the dark skin looks good, its quite fast and very easy to use. Even if you use the standard messaging, it automatically appears in your SMS threaded section. Also Calendar touch is great, much better than thumbcal etc, its got alot of features but still relatively easy to use, alot of different ways to customise views etc.
You can use ones like PocketCM that incorporates everything but id rather use Phonex with VITO.