all the kopibean outlets have wireless by StarHub, but you must be a subscriber or pay per use. not sure about starbucks. In malaysia apparently all starbucks (or at least some) come with FREE wireless access.
it's absolutely normal to plug in to power points in the US.
in fact the starbucks I frequent in new york has a total of 8 power points, most starbucks in new york have at least 2 power points.
anyway it builds customer loyalty.grin.
You buy a cup of coffee, and expect the shop to provide you free internet access for more than 2 hours plus electricity? Very soon someone will ask if the shop provide foldable sofa-bed, so that we can take a nap while waiting for the laptop to download MP3s