This page was designed to test whether screen readers support title attributes on form fields, as an alternative to (or in addition to) using a label element. Nothing happens when you submit this form.
Results
By default, JAWS 12 always reads the title. If a label is present, it reads that too (before the title). This can be controlled within JAWS settings.
Like JAWS, VoiceOver always reads the title. If a label is present, it reads that too, but unlike JAWS it reads the title first, then the label.
NVDA 2011.2rc1 also reads the title on all fields. However, if there's both a label and title present, it does not read the label, but reads the title twice (a bug? maybe it's intending to read the label).
If a form field has a title attribute, no screen reader reads nearby non-label text, as in the second input field.
If a form field has no label and no title attribute, JAWS takes a risk and reads the nearby paragraph as if it were the label. Neither NVDA nor VoiceOver are willing to take that risk - they just identify the field as an edit field, but otherwise offer no prompt.