I really like LinkedIn’s overall approach. Yeah - I have posted 2-3 blogs about LinkedIn within a week! (full disclosure: I don’t work for LinkedIn; LinkedIn is not paying me
Now, you can have LinkedIn App on your IPhone and it looks pretty neat. It is simple and slim. They don’t try to make it fancy with a range of fancy functions, which is probably why it is a good business app. There are only four major things you can do with your LinkedIn App (you can see the pic & detailed information from ReadWriteWeb post). But it gives enough updates about your business network from 4 quick glances.
LinkedIn is really taking the lead on business applications, both on the web and on the phone. I like their approaches for several reasons:
- Make it simple. People would rather use one thing that really get one job done quite well, even it’s small, than one giant thing that doesn’t get the job(s) done very well. LinkedIn UI, user flow, and features are all very simple. You wouldn’t feel overwelmed when you spend time on it.
- Take small steps slowly. LinkedIn didn’t launch a lot of features at one time. They did add new features from time to time. That gives them time to test & learn, while they figure out what users really care about. They took the same approach in their web UI redesign.
- Stay with #1 & #2. If you find something that really works for you, you might want to stay with them until you have much better approaches that worth taking the risk of trying. LinkedIn keeps being simple and making small changes graduately.
The business apps market is huge and there are not a lot of good apps for now though. If other business app providers could keep these learning in mind, hopefully we’ll see a lot more good business apps available for us. So I don’t have to write about LinkedIn 3 times a week 
Tags: business app, iphone, linkedin, social, social media, social network