Wow, 300rmb seems like a lot for a sim card. Here in Thailand they are usually free, or only about 50baht (less than $2). Of course, that doesn't include any credit though.
Is it possible to just buy a prepaid sim card cheap, then buy credit for EDGE or 3G? I will just need to do a bit of emailing over 2 or 3 weeks, then I will be leaving.
Also, which carrier might have best coverage between Kunming to Xishuanbanna to the Lao border? Hoping to catch up on emails on the bus rides.
I bought my tablet and realized that its only limited in the 3G area but it can handle any frequency for EDGE/GPRS (aka 2G). In Thailand the 3G carriers can use 1 or 2 freq's so I had to buy the tablet that used the frequency of my carrier. The same model tablet was available in either frequency.