Here's a small Lily program that lets you check the spelling of a word from your cellphone- it uses the Twitter API to send and receive messages from the cellphone and the Yahoo Suggested Spelling web service to look up the spelling. To use it you'll need two Twitter accounts- one for Lily and one for yourself. You'll also need to enable your cellphone in the Twitter account settings. In the patch you'll need to add your Twitter user/pass as an argument to the twitter object.
Once you're setup, run the spellchecker by texting "d <your-lily-account-name> <word-to-check>" to 40404. You should receive an SMS back from Lily with the correct spelling shortly.
The new twitter object implements most of the api methods, including the direct message feature which I'm using in this patch. The code also includes an example of doing basic auth with xmlhttp. You can download it and the twitter spellchecker patch here.