MightyPhone guesstimate

Ever wonder how much data you'd be transferring when synchronizing your mobile phone calendar with a PC? Sync service provider MightyPhone has this to say:

"Depending on the amount of data you plan to actively manage, the required level of data service subscription varies. For business users that synchronize business contacts and office calendar frequently, we recommend a data plan of up to 2MB to avoid additional data charges. For those using MightyPhone to manage their phone book only, a data plan with up to 1MB should be sufficient. Both examples assume an average address book of less 500 contact entries and a calendar with 4 scheduled appointments per business day."