The pre-launch expectation from analyst Gene Munster was for a comparatively modest 500K units sold over the weekend vs. the 3G million-phone launch, but now his firm has suggested that may have been a conservative number, as noted by AppleInsider. Between AT&T's citing of 'hundreds of thousands' of pre-orders for the phone, and O2 announcing that first-day sales for the 3G S blew past the totals for the 3G last year, it's possible that the 3G S could creep up towards that million-phone number and blockbuster territory.
Despite (or perhaps due to) the brisk sales pace, AT&T's activation infrastructure did not seem to be ready for the influx of account changes; this is a familiar situation, as last year's 3G launch triggered similar delays. Many new buyers (including our own Steve Sande) were faced with activation delays between two hours and two days. In recognition of the aggravation and inconvenience, Apple has begun emailing affected users with the offer of a $30 iTunes credit to be delivered Monday morning, according to Everything iCafe. If you got a credit email, please let us know.