The Lenovo S2 has some decent specs but in no way is it a high-end device. Some specs will almost certainly catch your attention, such as the Android 2.3 platform that will apparently get upgraded to ICS at some point, the 8 megapixel shooter or the single-core 1.4GHz processor, but others may have you scratching your head such as the miniscule 512MB of RAM.
Phonebook: Unlimited entries, Caller groups, Multiple numbers per contact, Search by both first and last name, Picture ID, Ring ID
Organizer: Calendar, Alarm, Calculator
Messaging: SMS, MMS, Threaded view, Predictive text input
E-mail: IMAP, POP3, SMTP