Simple, when you send an SMS to more than 1 person, Windows Phone compose the message as an MMS. Depending on your phone brand and/or network operator, you may not have an MMS profile on your phone, thus the sending failed.

so i found out that that bing music search can identify mandarin songs as well!

my co-workers were trying to figure out this one mandarin song that was playing on the radio, and i just decided to try using my phone and well...it found the song within 30 seconds even though i was about 15feet away from the radio and there were people talking and photocopier making copies, bing didnt have a problem.

i dont really understand mandarin that well (BANANA) but at least my phone does! LOL

if its old news, just ignore this post haha

the voice option isn't that one. use "music symbol" icon.