What is BYOD?
When smartphones and tablets become more and more popular and price of notebooks keeps dropping, people nowadays talk about BYOD (Bring Your Own Device) more often. BYOD is about employees bringing their own personal devices like smartphones, tablets, netbooks or notebooks to work. Employees then use their devices to connect company network/resource for task handling.

The Bright Side on BYOD
1) It is all about happiness at work. Using personal devices in office can make employee more into working and a recent survey conducted by Citrix stating there are up to 36% increase for productivity with BYOD. (sounds like iFanBoyz will get their extra iPower when using Apple devices)
2) When people select the BYOD way to work, he/she is indeed loving his/her device more than company’s ones and more willing to spend time with it.
3) Personal devices always come with employees’ favorite tools / software to work with.
4) Technology will be updated faster in BYOD, as employees change their own devices faster than company changing theirs.
5) Employees can get more mobility and flexibility with own devices.

The Dark Side on BYOD
1) " With great power comes great responsibility ” we provide employees to access company network/resource with their own device, we may consider the risk of company data being leaked out from those devices.
2) It is not about saving money. People think BYOD can help company to save money for hardware cost. Actually, it is not the case, as hardware price keeps dropping year after year. By applying BYOD, company need to spend extra cost for setting proper infrastructure and monitor the data security.
3) Extra admin cost will be applied for defining BYOD policies and procedures.
4) It is hard for company to control/check employees’ personal devices
5) Employees may be divided into 2 groups, one is more into BYOD, other is sticking on using company’s devices. And there may be conflicts between 2 groups of people.

Conclusion 
BYOD have it good and bad things, but I do think BYOD is our future. Think about our working environment is going into more globalization. We may need to work in different locations and different timezones for projects. BYOD on hardware can work well with cloud computing on software. And yes, risky security concern is still the biggest issue and it is okay, best practices need some time to adjust and progress. Like Skype, originally a consumer product for friend chatting, has been adjusted to be widely used in teleconferencing. 

Additionally, for near future, there should be 3 groups of people benefiting from BYOD: 
BYOD service/infrastructure provider, mobile device manufacturer and mobile device application developer.

Actually, BYOD is not a new thing, we used to do similar things in past as well, like buying mouse/keyboard for office machines, we are just buying a bigger stuff this time.