Download Free jQuery Form Validation, Input Mask, Select, Checkbox, Radio Button, Textarea and other form element enhancement plugins at our jQuery Form Plugin section. Page 57 .
MotionCAPTCHA is a cool jQuery Captcha Plugin that requiring users to sketch the shape they see in the canvas in order to submit a form.
Apple Login Form is a jQuery apple-like Login Form plugin using CSS3 3D transforms that you can flip elements in 3D space.
iPass Plugin is a Apple iOS Style Login Form. Check the demo page for more information.