If you want to stay connected, via your favorite instant messenger application, then IM+ is what you want. Its pricey because their servers support a stay connected IM push feature. You can actually log off the application on your phone, and the servers will push you an email of the instant message. Since the Blackberry supports push email the communication can be almost seamless. Once you get the IM you can fireup your IM+ application and start typing in real time. I have experienced good things with the application. The push feature works flawlessly, but there is one gripe.

If you have a kings battery, or two batteries for that matter, and want to keep IM+ running at all times there are some problems. I find that the various clients do not stay connected. They eventually disconnect, especially Facebook. Therefore I recommend to only have your IM+ application running in the background for only relatively short periods of time. When you know you don’t need it pop it on IM push mode and your good to go for up to 3 days.