says the new mobile payment service is having "slower than normal wait times to add [credit and debit] cards to Google Wallet."

Also, Google Wallet over-the-air updates to Nexus S smartphones are going slowly and the app did not reach all users by late Friday, when Google had said last week the update would be rolled out.

A Google Help Desk representative named Dave said via phone on Saturday at 7:36 a.m. (ET): "The [Google Wallet] rollout is kind of a slow rollout. They are still working on that. There's no specific time frame for when it will be complete. You should see it soon."

Computerworld called the Help Desk to see why a Nexus S phone in hand had not received the Google Wallet by Friday night, four days after .

Two Google spokesmen were asked to comment on the status of the rollout and the wait times for adding cards to Google Wallet, but did not respond as of mid-day Saturday.