智能手机是很多人的好友 The new 'Maslow's hierarchy of needs' ...

if Maslow is alive today, he may have to change 
his 'maslow's hierarchy of needs' 
to include both wifi and mobile device 
as part of the hierarchy.
...

Pavilion KL 

Olympus OMD EM1 m.zuiko 75mm 

f250 f2 @ 1/500