textPlus has textPlus Silver (iTunes Link) for the iPad in the iTunes App Store for FREE (regularly 99-cents) for a limited time.

Unlimited free texting to anyone in the US or Canada, even friends who don’t have the app. Free messaging to any textPlus user anywhere in the world. Tap the phone icon in the Inbox to launch the NEW textPlus Free Text + Calls app anytime. Group Text, Send Pics & Walkie talkie with your friends.