iPhone UILabel – non breaking space

Use the no-break space (\u00a0) ex: @"hello**\u00a0**world!"

post.text = [postText stringByAppendingString: @"1\u00a0hour\u00a0ago."];

U+00A0 / no-break space / Common Separator, space

from: http://en.wikipedia.org/wiki/Whitespace_character