Mobile Internet and Online Photo Sharing Recommendations

Obviously I'll need computer internet on-the-go for this trip.  My research has shown that it might be beneficial to stay with my current provider, AT&T.  The Mobile Broadband Review rates AT&T second after Verizon Wireless.  There are quite a few holes in AT&T coverage along my possible route.  What do my techie friends think about the best choice for use with my MacBook Pro?

Also, for uploading photos, there are several options:  Picasa Web Album, Photobucket, or Flickr.  I tend to favor Flickr because I especially enjoy their connection with Taggalaxy.  The Photo Sharing Services Review gives the number one position to Photobucket with Flickr in second place.  Picasa is not even listed.  I've read the information and would love to hear my respected colleagues' reviews on their favorites.

Thanks for your feedback!!!