Ask HN: Please review my uptime monitoring service

http://tagbeep.com is a simple to use website monitoring system (Beta and free)

Please let me know what do you think about the app and if the SMS alerts work in your country (the SMSes are free but some carriers charge for them).

http://tagbeep.com/blog/?p=61 - here are the features that I want to add.

I have little experience with selling stuff online. The current plan is that after beta I should have a free plan and a plan with unlimited SMSes and additional features.

Please write here any suggestions and feature requests. Thanks HN!