Another option is a wifi enabled portable device. These devices can connect to any hotspot and give you Internet access. Here are some examples.
- Ipod Touch - Has email and an excellent Safari browser that displays full webpages - currently lacks flash support.
- Nokia N810 Internet Tablet - Has a slide-out keyboard but it is expensive.
- Sony Mylo Com-2 - Can play flash videos in websites.
- Nintendo DS (with opera browser cartridge) - Slow, but it does give you web access.