Google Calendar’s been dealing with a bug that suddenly deletes entries, with no hope of recovery. The issue’s since been solved, but it wasn’t Google that fixed the problem. Now live in the Google Marketplace, Spanning Undelete is an application that will recover your data and prevent you from losing calendar entries for good. This is only part of the salvo of tools that Spanning will release in the coming months.

With a growing interest in Google Apps, Spanning was able to productize and safeguard Google Calendar, with the intention to leverage more Google Apps solutions moving forward.

“It’s a totally free tool. It lets you accident-proof your Google calendar and easily restore recently-deleted events —it’s for anyone that has frequent encounters with quantum fluxes or that has fat, fast-moving fingers…

“Google does not let anyone recover deleted calendar events, despite tons of requests — in their eyes once you delete it, it’s really gone. The folks that we tested Undelete with, so far literally consider it to be a lifesaver.”

Undelete is functional for regular Google Calendar users and Google Apps users. Even Google Apps admins can install it domain/organization-wide to give users direct access from the “more” menu without re-authenticating.

This app is really geared towards business users, enhancing the products and services with which they’re already familiar.  There’s a growing trend towards integrating services into web-based apps, filling in the gaps Google’s yet to address and building out an ecosystem that’s reliant on the cloud.

“Calendar deletion may seem like a little thing, but to a teacher whose entire semester of course planning has just been wiped out, or a professional who’s just lost a year’s worth of timesheets, or the proprietor of a B&B who’s just lost all of her reservations, it’s a catastrophe. And sadly, it happens more than we’d like to admit. Any Google Calendar users should absolutely safe-guard their life’s schedule. It’s free and easy. And it’s a no-brainer.”

Recently, Google also added a new feature to Gmail that allows you to use the e-mail service as default mail client for the Chrome browser, so Chrome users can open e-mail links in Gmail.  It’s another perk that’s streamlining separate Apps for a unified experience.

As many might have already noticed, the search giant’s web-based products are upping the ante against Microsoft’s core product line. The shared desire to earn the loyalty of the enterprise means both Google and Microsoft will need a heavily integrated Services approach to their respective strategies.