public async void RemoveItem(PicasaItem item)
        {
            if (item == null)
            {
                return;
            }
            try
            {
                StartBusiness();
                var result = await SocialNetworkService.RemoveImageAsync(UserId, AlbumId, item.Id, item.Etag);

                if (result)
                {
                    GetPhotos();
                }
            }
            catch (Exception ex)
            {
                NotificationsService.ShowAlert(UINotifications.Error, UINotifications.SomeErrorWhileDeletingItem);
                Log.Write(string.Format("RemoveItem Error: {0}", ex.Message));
            }
            finally
            {
                StopBusiness();
            }
        }